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Paper Citation Record · LEDGER

Causal concept for black hole shadows

As of 16 August 2026, this Paper Citation Record lists 80 of 80 outbound references and 1 inbound Pith citation observation for arXiv:1908.02921.

A citation records a reference. It does not transfer a finding from one paper to another.

pith.paper-citation-record.v1
1908.02921 v2

Coverage vector

measured 80 of 80 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links, observed 2026-08-14T14:41:17.393619Z

measured 81 of 81 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-15T06:32:42.880941+00:00

measured 1 of 1 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links, observed 2026-05-17T03:17:30.863114Z

measured 0 of 1 external citation measurements

A source-named dated measurement, never combined with another source.

Source: arxiv_reference, observed 2026-05-17T03:18:56.755485Z

Reference resolution

80 of 80 outbound references displayed

  • verified exact1
  • verified fuzzy56
  • unresolved22
  • parse uncertain1
  • malformed identifier0
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External citation measurements

No source-named external measurement is stored.

Outbound references

Observation 9ccf4f29-44d0-4621-afc3-6d80a5a542f4 · outbound

This paper cites Firstly, we want to distinguish the effect of Ricci curvature Rabkakb from the deviation equation given in the previous section (Eq.

Causal concept for black hole shadows Firstly, we want to distinguish the effect of Ricci curvature Rabkakb from the deviation equation given in the previous section (Eq

Reference 1

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.871724Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

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Observation bc715cb6-3b9a-4d59-94cd-5f83cb57b722 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 2

Resolution
unresolved
no resolver link, observed 2026-08-14T14:41:17.007767Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T14:41:17.007767Z digest=sha256:cf0bcb04fdf4cf88d6a67133eedad5ad42c0cbe597a872d8cef0c040ec69198b

Observation 28c3b5d9-aa41-4607-aef0-5e3e5ee8dee1 · outbound

This paper cites First M87 Event Horizon Telescope Results.

Causal concept for black hole shadows First M87 Event Horizon Telescope Results

Reference 3

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.744051Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.013830Z digest=sha256:2a42741495db6a5ac842f520f774192348edbf734a06e9fa1ea1bcf80e12abe6

Observation 11b5246a-09bc-430e-86a7-434f721f858a · outbound

This paper cites First M87 Event Horizon Telescope Results.

Causal concept for black hole shadows First M87 Event Horizon Telescope Results

Reference 4

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.728655Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.019233Z digest=sha256:664d7738fb96a71ac1c0b2587cea7d33667192215a995ba4f00c346497353acc

Observation b40dac34-a1b5-49b8-87e5-1ad66dcb3905 · outbound

This paper cites First M87 Event Horizon Telescope Results.

Causal concept for black hole shadows First M87 Event Horizon Telescope Results

Reference 5

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.712409Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.024827Z digest=sha256:4f22f6ce14dea293f78c186af3a18038c046e217a9f658c49ad393b977382d2b

Observation b3f77163-d7fd-4b5a-aca2-aa343c282ac4 · outbound

This paper cites First M87 Event Horizon Telescope Results.

Causal concept for black hole shadows First M87 Event Horizon Telescope Results

Reference 6

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.695692Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.030210Z digest=sha256:f3297250d7c4c7f754157cf70ec12a942ceeef91f5b31a81315e25b77f79af4d

Observation 2141648a-3a86-4283-a1ab-b7998c206d57 · outbound

This paper cites First M87 Event Horizon Telescope Results.

Causal concept for black hole shadows First M87 Event Horizon Telescope Results

Reference 7

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.677635Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.035549Z digest=sha256:49f25e4b68d5ddafef47d3f8b1a0b6b97aea617eba4a4703fcd1a1d18e1901df

Observation 562d71cb-d5b1-4bb0-ab3f-5e3fc52879f3 · outbound

This paper cites First M87 Event Horizon Telescope Results.

Causal concept for black hole shadows First M87 Event Horizon Telescope Results

Reference 8

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.660547Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.041725Z digest=sha256:747fc78b78d65e516ab8d0a7690153d2e05431d1ecf711739f3b524ebf04ee84

Observation b5f7623c-3412-4b92-abbb-7e40c7eb02b3 · outbound

This paper cites Topology of event horizon.

Causal concept for black hole shadows Topology of event horizon

Reference 9

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.643166Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.046490Z digest=sha256:4a8def0152899c04cb7bc59e11d15378eaea39f2cbc4735c12f133aad21edc68

Observation b764b13e-b591-42b8-966d-ce6ffd615a51 · outbound

This paper cites Topological appearance of event horizon: What is the topology of the event horizon that we can see? Prog.

Causal concept for black hole shadows Topological appearance of event horizon: What is the topology of the event horizon that we can see? Prog

Reference 10

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.626500Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

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Observation b259c3ba-e070-432d-a184-a2d36bcb4ca3 · outbound

This paper cites The Asymmetric merger of black holes.

Causal concept for black hole shadows The Asymmetric merger of black holes

Reference 11

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.609574Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

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Observation bd98be69-dd55-44f2-a184-19c32c767618 · outbound

This paper cites Cohen, Jeffrey D.

Causal concept for black hole shadows Cohen, Jeffrey D

Reference 12

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.594005Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

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Observation e48f87ee-2592-41c6-ae84-925923bf248d · outbound

This paper cites Kidder, and Saul A.

Causal concept for black hole shadows Kidder, and Saul A

Reference 13

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.578694Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.066770Z digest=sha256:ad37f08c621591d79278e0675cd33072b543e97d99e2ae0dc2530d6ebfec3e7d

Observation c4cad5a1-d5ff-412d-8dbd-27a4ebc65864 · outbound

This paper cites Black hole fusion in the extreme mass ratio limit.

Causal concept for black hole shadows Black hole fusion in the extreme mass ratio limit

Reference 14

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.562423Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.071532Z digest=sha256:22ac7f93ff3269633449039f52a652c10a6cb422213d9adc603bc42a0c3e471c

Observation b2a6a262-f8d8-496b-b9a1-cd00f0f74cf0 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 15

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:18.545965Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.075613Z digest=sha256:44ed40ebf3b08f35569f635cd072e0cd369d4f35925d5985bbe10a4e2a0da2bf

Observation 315dc80e-501e-4cf3-9f28-00a81f0a8347 · outbound

This paper cites Viewing the shadow of the black hole at the galactic center.

Causal concept for black hole shadows Viewing the shadow of the black hole at the galactic center

Reference 16

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.531802Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.079787Z digest=sha256:513104a3ff220be5b4bdb56dab7edcbd01ea1dcba04ee444b5723f5f0ed8bb92

Observation 1e3954a5-7486-499d-8fa7-07d82d00ed33 · outbound

This paper cites Broderick, Abraham Loeb, and Ramesh Narayan.

Causal concept for black hole shadows Broderick, Abraham Loeb, and Ramesh Narayan

Reference 17

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.515399Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.083949Z digest=sha256:c66631ed58aaebb411a2852003a6837d33955fafe20ba49f73e5197479fc22f7

Observation 435cd8b6-0bb0-4cf8-952c-4cbe80d302f6 · outbound

This paper cites Broderick, Vincent L.

Causal concept for black hole shadows Broderick, Vincent L

Reference 18

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.499694Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

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Observation b530221f-4918-493e-9717-14e44785c53b · outbound

This paper cites Shape and position of the shadow in the δ = 2 Tomimatsu-Sato space-time.

Causal concept for black hole shadows Shape and position of the shadow in the δ = 2 Tomimatsu-Sato space-time

Reference 19

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.482925Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.092685Z digest=sha256:246450d43eafe1654672d7277d26903e6b00130129a209af204beafdbd0ca0b7

Observation b8b2c1f8-69e6-430f-99fb-8a5b350be495 · outbound

This paper cites Testing the rotational nature of the supermassive object m87 from the circularity and size of its first image.

Causal concept for black hole shadows Testing the rotational nature of the supermassive object m87 from the circularity and size of its first image

Reference 20

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.466625Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.097130Z digest=sha256:c9ff2ef8fb6c02098c669409556ec900fce57f60e71afade8c768d32fc7b7a60

Observation 798ef382-ceba-40bb-8f8f-81c6b898f373 · outbound

This paper cites Shadows of colliding black holes.

Causal concept for black hole shadows Shadows of colliding black holes

Reference 21

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.451204Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.101720Z digest=sha256:e8fd56305b5a5d97926c85265c392767bbf32f77c1f81a36fe7942e52a3f6f99

Observation 5e432c43-5c49-482b-8308-bdf4cd5a2a28 · outbound

This paper cites Shadows of Multi-Black Holes: Analytic Exploration.

Causal concept for black hole shadows Shadows of Multi-Black Holes: Analytic Exploration

Reference 22

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.434047Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.106197Z digest=sha256:c4606c00f1b62bf136b17a22ed3567b88c30c3da6639df4681f0b145f7a0b33f

Observation 566aa7e5-17c1-4fb5-9674-753b75927778 · outbound

This paper cites Shadow of Kerr-Taub-NUT black hole.

Causal concept for black hole shadows Shadow of Kerr-Taub-NUT black hole

Reference 23

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.418388Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.111228Z digest=sha256:5df302fe35a416bc58e2ea9cedab2c962f4e38c86ad687ec1b516b903ac2d56e

Observation 4a476937-c3c2-4de8-ae71-1f96b9b06b66 · outbound

This paper cites Photon Regions and Shadows of Kerr-Newman-NUT Black Holes with a Cosmological Constant.

Causal concept for black hole shadows Photon Regions and Shadows of Kerr-Newman-NUT Black Holes with a Cosmological Constant

Reference 24

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.402236Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.116309Z digest=sha256:f2c8d9869686e3b11ac7901f337b227a4c593c5fdb4e5ea3a47773686db386a0

Observation 74c3727e-3cd7-42c2-b084-7ee105e7a191 · outbound

This paper cites Eiroa, and Gaston Giribet.

Causal concept for black hole shadows Eiroa, and Gaston Giribet

Reference 25

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.387767Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.121207Z digest=sha256:5060411d4095e5775ee92f378a8ad8f039146d882277f76cb406c8f88cd6bbb2

Observation 888c089c-f5c9-41f5-9eb7-04ad2201ae24 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 26

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:18.370697Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.126329Z digest=sha256:aa9ea4bd91f716d9231d2e068c760d24558d511232556e77c8d51b6dc72229f9

Observation a953a657-a4b0-4744-80be-877f2fce365c · outbound

This paper cites Shadow of a Charged Rotating Black Hole in f (R) Gravity.

Causal concept for black hole shadows Shadow of a Charged Rotating Black Hole in f (R) Gravity

Reference 27

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.354919Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.131171Z digest=sha256:2d7aca88e9ddcd89787e51c8cd0075567ea996a161c340d7a11dd5e522101973

Observation d304f46f-2b9d-4545-b31d-fe182f00bb16 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 28

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:18.338571Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.136103Z digest=sha256:29659fc9c598dff48fbab01f2b94d821a1273732c29fc9887957a6a15e54d605

Observation ebd20027-486c-4d85-a257-eff666cfff3e · outbound

This paper cites Hunting for extra dimensions in the shadow of m87.

Causal concept for black hole shadows Hunting for extra dimensions in the shadow of m87

Reference 29

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.321112Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.141251Z digest=sha256:16730c906b4d66fa06b2189d3206e16446c57d37e35e5d0770891fc5325747ca

Observation 7c02650b-f84e-4449-b74e-10ebeaf4a69c · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 30

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:18.304960Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.146545Z digest=sha256:359e69d9b7214c8c98ac174fa7423b8c33c595900d8cc923d94e1d8cd506977a

Observation 88d96bd2-db86-487e-ba19-0835eb669677 · outbound

This paper cites Upper bound on the radii of black-hole photonspheres.

Causal concept for black hole shadows Upper bound on the radii of black-hole photonspheres

Reference 31

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.288401Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.151661Z digest=sha256:dd1f534f4990edcb9d93f51e586db7389f47717a91a0372b0a9302ebcc174e37

Observation 7ea4fd2b-6581-48c7-b5d8-3ecfee872ffb · outbound

This paper cites On the number of light rings in curved spacetimes of ultra-compact objects.

Causal concept for black hole shadows On the number of light rings in curved spacetimes of ultra-compact objects

Reference 32

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.272316Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.157000Z digest=sha256:8e37a05e2019d5ab933b375e280addd160cce2d63ca764854ca4a48313761657

Observation 173cf5ea-7911-45d1-b736-e5d2d6c40697 · outbound

This paper cites Absorption and emission spectra of a schwarzschild black hole.

Causal concept for black hole shadows Absorption and emission spectra of a schwarzschild black hole

Reference 33

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.255759Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.161945Z digest=sha256:d4687544028cea4c3e67df5889e85f74bed6f91f06497f56b1337f083e1442ef

Observation f1c91489-116d-4ead-949b-669856d5d38c · outbound

This paper cites Unstable circular null geodesics of static spherically symmetric black holes, regge poles, and quasinormal frequencies.

Causal concept for black hole shadows Unstable circular null geodesics of static spherically symmetric black holes, regge poles, and quasinormal frequencies

Reference 34

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.239451Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.167050Z digest=sha256:af8f484b076588c91a1cce5295b5808915b6daef732da55163b0fd47490590b8

Observation 9232b6d9-b6a9-48b7-bf13-3a9b10abf4c3 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 35

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:18.224425Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.171963Z digest=sha256:c72f5c49b9e0c883398e82b608d52a6bc7d80adb381ae2ec13fcd37586a558d7

Observation fddc21da-a05f-4deb-b55f-bba0aa3d4f70 · outbound

This paper cites Spherical photon orbits around a kerr black hole.

Causal concept for black hole shadows Spherical photon orbits around a kerr black hole

Reference 36

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.209050Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.176896Z digest=sha256:22ada19c3113129f36ff9af23fa4065b3e4fc3e1b0bfbce3c9199a55d3a3d646

Observation 7c81c516-1ae4-44dd-8b3f-2c62102c2e8d · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 37

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:18.192590Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.182399Z digest=sha256:c05c6fbbc0795d934cf95f740bfd6276b3edd2ce69bfdc1ab5fb78130727d835

Observation 8d131542-cf64-4170-b97c-18e778996d4e · outbound

This paper cites Catastrophe theory and its applications.

Causal concept for black hole shadows Catastrophe theory and its applications

Reference 38

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.176313Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.187598Z digest=sha256:fba5647809ab91e5bbd65a060c97eafe1ec2d53eb5dd08ddfb7553623601bfb2

Observation 9842f0d4-3621-4911-a379-bd474ea7c25e · outbound

This paper cites The shadow of a collapsing dark star.

Causal concept for black hole shadows The shadow of a collapsing dark star

Reference 39

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.159651Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.192517Z digest=sha256:2dd8298e2545c4c146a0d7f6cb1c583d9cedaa529418669ff9512f11d65c0b50

Observation 4fedfb27-91f7-43de-8541-c943c7e31e53 · outbound

This paper cites Quasi-local photon surfaces in general spherically symmetric spacetimes.

Causal concept for black hole shadows Quasi-local photon surfaces in general spherically symmetric spacetimes

Reference 40

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.143029Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.197354Z digest=sha256:5e60ee6cc54a1ab5705939cc77c3a183af9dd8984281d1d215388efedbb902fa

Observation 52e56186-4db5-4dc1-b276-b4f2f347f19c · outbound

This paper cites Understanding photon sphere and black hole shadow in dynamically evolving spacetimes.

Causal concept for black hole shadows Understanding photon sphere and black hole shadow in dynamically evolving spacetimes

Reference 41

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.126796Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.202171Z digest=sha256:9ba24cd417f6ad2b367e615ad60aa369686ebeccd3adc0a4d8c730df75db0bbc

Observation c04e026f-71fe-46ea-9a7f-7361b6615fea · outbound

This paper cites Bisnovatyi-Kogan and Oleg Yu.

Causal concept for black hole shadows Bisnovatyi-Kogan and Oleg Yu

Reference 42

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.110493Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.211005Z digest=sha256:f8151475db431c2d265ace43b9452051580ab04e2ff86f9ef82b45658859a0e2

Observation cbc56187-a470-4a0f-bfff-8e133d004b0e · outbound

This paper cites Transversely trapping surfaces: Dynamical version.

Causal concept for black hole shadows Transversely trapping surfaces: Dynamical version

Reference 43

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.094651Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.218013Z digest=sha256:e7b6912a829a6a4887bd4c51ab60cac247d530d1ae2dfa0c21a5534eb6496a60

Observation 780f0a4e-4087-48b9-b9f6-9bdccbe487b7 · outbound

This paper cites The fingerprints of black holes—shadows and their degeneracies.

Causal concept for black hole shadows The fingerprints of black holes—shadows and their degeneracies

Reference 44

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.078440Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.222898Z digest=sha256:549e57be923b54f2e4c4b4d8042bbb494702fde5503419a9be94ed608c199161

Observation ef4d18ee-ae44-4c34-b46d-09002fcf2ab9 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 45

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:18.063130Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.227760Z digest=sha256:b5e5553dcf00db4bd9d7d787153f77e8395b9ac7ca2f8712f617f8377cabb211

Observation d04025fc-99f1-4dff-af36-d6767a1a2c39 · outbound

This paper cites Spherical steady accretion flows: Dependence on the cosmological constant, exact isothermal solutions, and applications to cosmology.

Causal concept for black hole shadows Spherical steady accretion flows: Dependence on the cosmological constant, exact isothermal solutions, and applications to cosmology

Reference 46

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.048169Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.232567Z digest=sha256:94377c6427136cab7f523c41d43dc33b93a3233e900b9a3c7ec36f7791edd8f4

Observation 7f2b134e-59b3-468a-bb18-10a55b72beaa · outbound

This paper cites Radial accretion flows on static spherically symmetric black holes.Classical and Quantum Gravity, 32(15):155006, jul 2015.

Causal concept for black hole shadows Radial accretion flows on static spherically symmetric black holes.Classical and Quantum Gravity, 32(15):155006, jul 2015

Reference 47

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.031134Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.237170Z digest=sha256:0b6d3ba6a19089abc130e9d7a84f323487191cb99247126d53d0f432f187bfd9

Observation 12be2d00-556a-460e-8d47-60571996bb93 · outbound

This paper cites Cveti ˇc, G.

Causal concept for black hole shadows Cveti ˇc, G

Reference 48

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:18.014721Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.241401Z digest=sha256:7829f2946d9aa6bfe43a87641a80532180fbeb819ad682dc831b75106ca9722a

Observation 67e4b438-9c0c-45d3-b731-de7aadecdb94 · outbound

This paper cites Correspondence between sonic points of ideal photon gas accretion and photon spheres.

Causal concept for black hole shadows Correspondence between sonic points of ideal photon gas accretion and photon spheres

Reference 49

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:17.997640Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.245906Z digest=sha256:bee151238da152803248b9eb9007bfcd395feba1ea8baa0fce48f4fb59ec1980

Observation 31d1d040-a442-49b9-b229-1b4931896cd4 · outbound

This paper cites Rotating accretion flows in d dimensions: Sonic points, critical points, and photon spheres.

Causal concept for black hole shadows Rotating accretion flows in d dimensions: Sonic points, critical points, and photon spheres

Reference 50

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:17.980946Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.250242Z digest=sha256:01ecb1bf05a7a475c27b9b547980880a458683067ed41e4d1850fb25ab97df21

Observation 44fe2ec0-c0f5-4cc7-8042-9138615cd009 · outbound

This paper cites Photon surfaces in spherically, planar, and hyperbolically symmetric spacetimes in d dimensions: Sonic point/photon sphere correspondence.

Causal concept for black hole shadows Photon surfaces in spherically, planar, and hyperbolically symmetric spacetimes in d dimensions: Sonic point/photon sphere correspondence

Reference 51

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:17.964059Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.254605Z digest=sha256:b804b799cfd613b6eeb4290745a102386f5fcc5143f39628505f3ed1f523f925

Observation 522e7f6b-bc6c-449a-9c9a-ef93a5c0c0b1 · outbound

This paper cites Gibbons and C.M.

Causal concept for black hole shadows Gibbons and C.M

Reference 52

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:17.947802Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.258932Z digest=sha256:e0fb42801ba779cfb62ea7931632eb1d084f5e70921627d5d6df673262eb5576

Observation 76787d54-f5ce-404a-a6f4-1c7d87987632 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 53

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:17.932431Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.263471Z digest=sha256:e48cc9f49231fbbed0e57792ed4f399b7050439ffc5950dd99b048d6e2353df9

Observation a5f77fcd-8940-4a01-9444-f6d290f5cea9 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 54

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:17.918004Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.268371Z digest=sha256:c9f7fa3edb71b55bee7dc1e9c0fd39f5bf59ff505e9c586a92011edbe0bd9c0d

Observation 0fa83f23-0ecb-4a15-a739-fe32d99fd195 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 55

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:17.901617Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.273266Z digest=sha256:5d7c96db432c5d08e7d8c0e8640fe9c2270dea445c1c3c79498fc7ea048ea9c2

Observation be39b0e9-f59f-435a-a56c-1086e7d1f29c · outbound

This paper cites Stability of null orbits on photon spheres and photon surfaces.

Causal concept for black hole shadows Stability of null orbits on photon spheres and photon surfaces

Reference 56

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:17.885765Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.278314Z digest=sha256:8bbccb7ba3f963c9c9d9f158f8400a16116dfab2e662e8196b96af6874406ef8

Observation 8ac244c4-2d5b-4c74-a0ea-c2cad96c4ead · outbound

This paper cites Spinors and space-time, vol.

Causal concept for black hole shadows Spinors and space-time, vol

Reference 57

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:17.869577Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.283195Z digest=sha256:8caf8c3ff7d34faffcf61d74f699a181d00a9c10095802821643ddd0a64163f2

Observation 955af573-7e7e-4f37-b32d-eec9d4e0ff75 · outbound

This paper cites Geroch, E.

Causal concept for black hole shadows Geroch, E

Reference 58

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:17.853204Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.288011Z digest=sha256:a33350bbd433b5011e26e0bd2eb3f489cdde731f37ad44df7e75f4364b220761

Observation e1eb29ef-e313-4023-a884-93094a983330 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 59

Resolution
parse uncertain
raw_fallback, observed 2026-08-14T14:41:17.837110Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.292886Z digest=sha256:69a809ffd2910c83bc629a9a64a2595b15ae9f46a6225e452fa4070c4c765960

Observation 2d9e0798-a2a9-425a-9f25-3b30ec314fb0 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 60

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:17.820292Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.297979Z digest=sha256:a576a1fba4553b141a59dbf2e0f0b6ddf256ee1d86ab2775d547dbbecb28854d

Observation 37a50471-6a08-4aa9-b25c-cba78d91d27a · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 61

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:17.805941Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.303065Z digest=sha256:3884c3804695677ba53fa255c63555962fe460370ed1703349de52af107aee64

Observation 20968cb8-43ef-4c97-93c2-97af935d3546 · outbound

This paper cites Slowly decaying waves on spherically symmetric spacetimes and ultracompact neutron stars.

Causal concept for black hole shadows Slowly decaying waves on spherically symmetric spacetimes and ultracompact neutron stars

Reference 62

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:17.791009Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.307955Z digest=sha256:a3e3f47157a11db4417622ac268201e4ce3b44ac19a90c2a79085a0b2671342b

Observation 6466c3db-a6f0-4b84-9ce0-07f00328a979 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 63

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:17.775233Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.312816Z digest=sha256:7fb85ed01748f8d6770e83ec9d71dfe6a8ac8f50cc82f0c60e8f835185fadd41

Observation 80b762c3-3a44-44ff-a297-010dc58e8a1d · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 64

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:17.759674Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.317600Z digest=sha256:b52e6890e1bc9b8f886c5b3869dc45226c36e1e3c12697017b2680beac2b91ac

Observation 398cf8c4-a657-458a-a4a0-deee402d4c90 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 65

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:17.743612Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.322409Z digest=sha256:2a767e8937f9fdc8c276506f47287bd67b8fd822a545630571e225a7bc7cb132

Observation fe0a23eb-5e88-40b6-9e08-9d9b0189f862 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 66

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:17.727630Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.327367Z digest=sha256:2dfab9550b4241579f01dc80e1b3c2fc76ac69a842784e90fdbff5c6f2f4e599

Observation 3c6e1a38-4a53-4427-ad16-842c16ed7c08 · outbound

This paper cites Light curves of light rays passing through a wormhole.

Causal concept for black hole shadows Light curves of light rays passing through a wormhole

Reference 67

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:17.712197Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.332351Z digest=sha256:7156f546057f17b672edd7eaac91f09be6bd89bb870e53116ac85bf5468177fe

Observation f9ceae9e-66d3-46ff-9cfd-2a1cf518a093 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 68

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:17.695773Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.336993Z digest=sha256:04bc0a05e7a90e719a3780e1d52e9594b83eb1bf9ecd7f421abdc24c6eef09bb

Observation e966a0ff-6582-4365-9558-8c9a58816269 · outbound

This paper cites Eiroa, Gustavo E.

Causal concept for black hole shadows Eiroa, Gustavo E

Reference 69

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:17.679589Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.342279Z digest=sha256:6855b38625d0efdcd40d571f9a889fd85263b3be13ac55de54b601021ac76aae

Observation 4c807d46-ccce-4a08-892b-f17cc722952a · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 70

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:17.664398Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.346962Z digest=sha256:d0417b2947a78dc9b5ee67dca8a0f61084dc163f5db7463b0786d33d30a83895

Observation b7efd483-a194-4207-9141-53db2e465c11 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 71

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:17.649406Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.351627Z digest=sha256:d59efa27cb444dbd6e33fbd60bdadbfc2d7ea3a8b8d119efe6aca1f7b05cc398

Observation a8fd00b8-f12e-4196-aea5-d6c368635b26 · outbound

This paper cites Analytical approach to strong gravitational lensing from ultra- compact objects.

Causal concept for black hole shadows Analytical approach to strong gravitational lensing from ultra- compact objects

Reference 72

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:17.633934Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.356455Z digest=sha256:84dd4030cb28b950a240c857f0e4861a48369eeee3c6d73d3e2192a3865b102c

Observation b6d4377a-ff59-46f4-99a9-f0d82c3a22fb · outbound

This paper cites Stefanov, Stoytcho S.

Causal concept for black hole shadows Stefanov, Stoytcho S

Reference 73

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:17.617636Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.361334Z digest=sha256:fdb504c9316484506d775fee5730e88bc33c89e54ef4ce290ed835440f5ac71c

Observation f815ebc7-c8ec-428e-b9ba-cf8e71691174 · outbound

This paper cites Thorne W.L.

Causal concept for black hole shadows Thorne W.L

Reference 74

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:17.601189Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.366108Z digest=sha256:e2ca554ad64a41c76e96abbe33bd4938c8e40a85960e004e5b6366e50ec605ba

Observation 6ca243e9-0a08-4eca-8cb5-cd5bbb0e145f · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 75

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:17.584102Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.370988Z digest=sha256:4e47b084d15625e386210197607b339b67a2194af16029ea037d036b36977dbb

Observation b2ffe03e-4dba-44ce-82e4-ef6ed5d17f24 · outbound

This paper cites How does a collapsing star look? Physical Review D, 100(8), oct 2019.

Causal concept for black hole shadows How does a collapsing star look? Physical Review D, 100(8), oct 2019

Reference 76

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:17.565290Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.375924Z digest=sha256:dd133ad0afdcf4849c565919e177115743683c45cc09d4ae06f1b01437a6fa6e

Observation ef8084bb-056f-4371-a0f5-e24296f45bb5 · outbound

This paper cites TOPOLOGICAL CLASSIFICATION OF BLACK HOLES: GENERIC MAXWELL SET AND CREASE SET OF a HORIZON.

Causal concept for black hole shadows TOPOLOGICAL CLASSIFICATION OF BLACK HOLES: GENERIC MAXWELL SET AND CREASE SET OF a HORIZON

Reference 77

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:17.548491Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.380446Z digest=sha256:8758bea9b548561d24e3518d5e2ef7bdbb0ea3836c1118b17f01b2d86c9b7d44

Observation 9551010b-4871-4ae4-ba9d-ffe4c7273845 · outbound

This paper cites Topology of event horizon in axially symmetric spacetime: Classification of maxwell set with symmetry.

Causal concept for black hole shadows Topology of event horizon in axially symmetric spacetime: Classification of maxwell set with symmetry

Reference 78

Resolution
verified exact
raw_fallback, observed 2026-08-14T14:41:17.496855Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.384700Z digest=sha256:48cf034082212b7f569d61a19ff331ada6850fa0034cdeb4c35089a79547addb

Observation 86117b24-ad24-45b9-ae8c-47eb2967e303 · outbound

This paper cites an unresolved cited work.

Causal concept for black hole shadows Unresolved cited work

Reference 79

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:41:17.530701Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.389307Z digest=sha256:c5a0604990ead896924caf305ca47a4c94e4e37292f5c31c8463855d427182d2

Observation 89daf1dd-9f35-4fd2-9bf6-c56621139cf8 · outbound

This paper cites Siino and D.

Causal concept for black hole shadows Siino and D

Reference 80

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:41:17.513708Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-08-14T14:41:17.393619Z digest=sha256:8c1450ed3ae8443b153454c17be19d1d718838b36f2b37ed58442f8f73a905a9

Pith citing papers

Observation b0f5ac3e-7caf-4c8d-b2b5-74076f2f0cf7 · inbound

Gravitational lensing inside and outside of a marginally unstable photon sphere in a general, static, spherically symmetric, and asymptotically-flat spacetime in strong deflection limits cites this paper.

Gravitational lensing inside and outside of a marginally unstable photon sphere in a general, static, spherically symmetric, and asymptotically-flat spacetime in strong deflection limits Causal concept for black hole shadows

Reference 53

Resolution
verified exact
arxiv_id, observed 2026-05-17T03:18:56.758097Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=pdf_text observed=2026-05-17T03:17:30.863114Z digest=sha256:10e8506a71ed98f2caa7920aa0eb349efd00afcee9d6cf1d9b658db1edf65e36