Pith Number

pith:PKGS4BKZ

pith:2026:PKGS4BKZA75M62OUHHJHKRUMIG

not attested not anchored not stored refs resolved

GeV emission in the region of Vela: a new view of the supernova remnant

Braulio J. Solano-Rojas, Diego Bueso, Miguel Araya, Santiago Ram\'irez

Most GeV point sources near Vela are spurious and the emission comes from the extended supernova remnant itself.

arxiv:2604.16768 v1 · 2026-04-18 · astro-ph.HE

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\usepackage{pith}
\pithnumber{PKGS4BKZA75M62OUHHJHKRUMIG}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

We conclude that the majority of the cataloged point sources are likely spurious, and the GeV gamma rays come from an extended source, which we argue is the counterpart of the Vela SNR. ... The spectrum of the emission is best fit with a hadronic model.

C2weakest assumption

The two machine-learning classifiers correctly determine that the cataloged sources do not belong to the pulsar or AGN populations, and that the remaining residual emission is produced by the SNR rather than by unrecognized sources or background.

C3one line summary

Most cataloged Fermi point sources in the Vela region are spurious; the GeV emission is extended hadronic emission from the supernova remnant.

References

63 extracted · 63 resolved · 1 Pith anchors

[1] 2016, in 12th USENIX Symposium on Operating Systems Design and Implementation (OSDI 16), 265–283 2016

[2] 2024, arXiv e-prints, arXiv:2411.07162 1, 9 2024

[3] 2020, ApJS, 247, 33 Article number, page 8 Miguel Araya et al.: GeV emission in the region of Vela: a new view of the supernova remnant 2020

[4] 2022, ApJS, 260, 53 2022

[5] 2016, ApJS, 224, 8 2016

Receipt and verification

First computed	2026-06-03T14:05:47.511532Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a8d2e055907facf69d439d275468c41941a78dbe3f545fe9714c4ee23ccc73a

Aliases

arxiv: 2604.16768 · arxiv_version: 2604.16768v1 · doi: 10.48550/arxiv.2604.16768 · pith_short_12: PKGS4BKZA75M · pith_short_16: PKGS4BKZA75M62OU · pith_short_8: PKGS4BKZ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/PKGS4BKZA75M62OUHHJHKRUMIG \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 7a8d2e055907facf69d439d275468c41941a78dbe3f545fe9714c4ee23ccc73a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "119a07488f6e9456406126f1419bef906bfa4fbb320f563e1a3d6672f5ed5142",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-04-18T01:27:32Z",
    "title_canon_sha256": "4141a4459d7174dfd42e9d63c9d216c60130681cbdfbc5cc123a07721c269aa2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.16768",
    "kind": "arxiv",
    "version": 1
  }
}