Paper Citation Record · LEDGER

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4

As of 11 August 2026, this Paper Citation Record lists 38 of 38 outbound references and 0 inbound Pith citation observations for arXiv:2606.23498.

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

pith.paper-citation-record.v1
2606.23498 v1

Coverage vector

measured 38 of 38 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links, observed 2026-06-26T07:18:05.744449Z

measured 38 of 38 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-11T06:34:44.6726+00:00

measured 0 of 0 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links

measured 0 of 1 external citation measurements

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

Source: cited_works

Reference resolution

38 of 38 outbound references displayed

verified exact3
verified fuzzy0
unresolved35
parse uncertain0
malformed identifier0
metadata mismatch0

External citation measurements

No source-named external measurement is stored.

Outbound references

Observation 75924717-2563-4f78-81a8-57ca7bbdae69 · outbound

This paper cites 2023, MNRAS, 526, 5765.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 2023, MNRAS, 526, 5765

Reference 1

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation dead259c-fdd8-4aae-9b3e-8a241b5e64b9 · outbound

This paper cites 2026, arXiv e-prints, arXiv:2601.08047 2.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 2026, arXiv e-prints, arXiv:2601.08047 2

Reference 2

Resolution: verified exact; arxiv_id, observed 2026-07-04T12:09:48.535536Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation e4db30b8-ea4d-4410-9842-fdff8167e43e · outbound

This paper cites A., Godet, O., & Middleton, M.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 A., Godet, O., & Middleton, M

Reference 3

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

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Unavailable: canonical work link unavailable.

Observation c1abbe4e-e98f-47c2-bc94-6d1d1cc6ee42 · outbound

This paper cites an unresolved cited work.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 Unresolved cited work

Reference 4

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 39c24a61-73e9-4332-bf8f-a132845174b0 · outbound

This paper cites A., Walton, D.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 A., Walton, D

Reference 5

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

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Unavailable: canonical work link unavailable.

Observation f7a78f22-5e6e-4c5d-bc18-62d522e42628 · outbound

This paper cites 2023, ApJ, 951, 51.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 2023, ApJ, 951, 51

Reference 6

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 866cbe3e-bba6-430b-87f4-f2b14f862db4 · outbound

This paper cites 2018, MNRAS, 476, L45.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 2018, MNRAS, 476, L45

Reference 7

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 72a82796-60ef-4555-9747-f86a96bc63aa · outbound

This paper cites an unresolved cited work.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 Unresolved cited work

Reference 8

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 2845d51b-8823-42a0-a6fa-6b0a7d2a5a9a · outbound

This paper cites 2025a, arXiv e-prints, arXiv:2511.04282.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 2025a, arXiv e-prints, arXiv:2511.04282

Reference 9

Resolution: verified exact; arxiv_id, observed 2026-07-04T12:09:48.532912Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 911855ac-9555-4454-a4a3-cb507047a5c4 · outbound

This paper cites P ., Grefenstette, B.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 P ., Grefenstette, B

Reference 10

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 55fd1f16-eff1-4961-8169-4668f7d92a99 · outbound

This paper cites P ., Heida, M., Brightman, M., et al.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 P ., Heida, M., Brightman, M., et al

Reference 11

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

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Unavailable: canonical work link unavailable.

Observation 37c1dd1e-36ec-4fd6-8298-bbb4dd2205fb · outbound

This paper cites N., Atapin, K.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 N., Atapin, K

Reference 12

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 4a6e4067-e79f-4e17-9245-4fbb12d8577b · outbound

This paper cites C., Allen, G.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 C., Allen, G

Reference 13

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation f6e43745-ede8-40f3-b0f6-5713d167360d · outbound

This paper cites C., Roberts, T.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 C., Roberts, T

Reference 14

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 52333d64-3e3e-45bb-b713-f35a0c46b55b · outbound

This paper cites 2023, ApJ, 946, 72 Gúrpide, A., Godet, O., Koliopanos, F., Webb, N., & Olive, J.-F.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 2023, ApJ, 946, 72 Gúrpide, A., Godet, O., Koliopanos, F., Webb, N., & Olive, J.-F

Reference 15

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation f0b9b7cd-cb9a-4600-abfe-46aa8b907ae1 · outbound

This paper cites an unresolved cited work.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 Unresolved cited work

Reference 16

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 64062fbe-b775-4edf-b128-78bbb9d7d4c7 · outbound

This paper cites L., Belﬁore, A., Stella, L., et al.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 L., Belﬁore, A., Stella, L., et al

Reference 17

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 748da447-146e-4972-a4a4-567b5cc04300 · outbound

This paper cites an unresolved cited work.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 Unresolved cited work

Reference 18

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation f5424d87-0b57-426e-8db4-1ff0be3ec772 · outbound

This paper cites an unresolved cited work.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 Unresolved cited work

Reference 19

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 6a828b12-3ae3-4a64-8323-18ecc1251b35 · outbound

This paper cites & Lasota, J.-P.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 & Lasota, J.-P

Reference 20

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation fc2cd203-d476-4fe8-b9a9-26636779c54f · outbound

This paper cites 2023, New A Rev., 96, 101672.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 2023, New A Rev., 96, 101672

Reference 21

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation e225f54a-2dad-4a6e-bd4c-c95b642ceba4 · outbound

This paper cites an unresolved cited work.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 Unresolved cited work

Reference 22

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation a0aad569-bd9d-42bc-9318-b8eef55b5faf · outbound

This paper cites J., et al.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 J., et al

Reference 23

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation c1eea493-be70-432c-9825-74cab45a78a7 · outbound

This paper cites 2000, ApJ, 535, 632.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 2000, ApJ, 535, 632

Reference 24

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 3a7d1106-a99e-4d78-8901-5e56d3eaa297 · outbound

This paper cites M., Fabbiano, G., Miller, M.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 M., Fabbiano, G., Miller, M

Reference 25

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 6739f30a-5122-485f-a036-25552e70f54f · outbound

This paper cites M., Fabian, A.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 M., Fabian, A

Reference 26

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 78fe3b1f-1549-43d6-8f33-4f7a483220f4 · outbound

This paper cites W., Soria, R., Grisé, F., & Pietrzy ´nski, G.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 W., Soria, R., Grisé, F., & Pietrzy ´nski, G

Reference 27

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation bea61769-164f-400b-9b1b-f61e525f3351 · outbound

This paper cites A., Ingram, A., Middleton, M., Nagirner, D.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 A., Ingram, A., Middleton, M., Nagirner, D

Reference 28

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

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Unavailable: canonical work link unavailable.

Observation 63e9e198-fe15-4a60-a3f7-6d409ac7d8f9 · outbound

This paper cites 2017, MNRAS, 468, 2865.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 2017, MNRAS, 468, 2865

Reference 29

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation cacb77ce-8a34-4043-8a8d-229863cb2e39 · outbound

This paper cites Ultra-luminous X-ray sources: extreme accretion and feedback.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 Ultra-luminous X-ray sources: extreme accretion and feedback

Reference 30

Resolution: verified exact; arxiv_id, observed 2026-07-04T12:09:48.529970Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation a53cab96-c918-4779-b017-a777268dfee5 · outbound

This paper cites G., & Abolmasov, P.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 G., & Abolmasov, P

Reference 31

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation f768ca08-9a89-411f-ba1f-9224ebb17ad9 · outbound

This paper cites an unresolved cited work.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 Unresolved cited work

Reference 32

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 71531317-a27c-49fe-b3f8-c9813a6c10d3 · outbound

This paper cites P ., Walton, D.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 P ., Walton, D

Reference 33

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 3f47a889-6748-4773-86d5-4068d46fb326 · outbound

This paper cites D., Norris, J.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 D., Norris, J

Reference 34

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 89079820-aabf-413b-9581-0ff4cf9a1985 · outbound

This paper cites & Ghosh, K.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 & Ghosh, K

Reference 35

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation cf421702-5d0f-47ab-90c6-f7980aaec3ab · outbound

This paper cites D., Roberts, T.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 D., Roberts, T

Reference 36

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 6c616c55-54ba-4635-a341-c3e216bb3caf · outbound

This paper cites S., Mushtukov, A.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 S., Mushtukov, A

Reference 37

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation fdc84fac-b33a-49a4-86c4-ff3b21568594 · outbound

This paper cites J., Heida, M., Bachetti, M., et al.

Spectral and timing variability of the transient ultraluminous X-ray source NGC 4631 X-4 J., Heida, M., Bachetti, M., et al

Reference 38

Resolution: unresolved; no resolver link, observed 2026-06-26T07:18:05.744449Z

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Unavailable: canonical work link unavailable.

Pith citing papers

No inbound Pith citation observations are available.