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Gamma-Ray Bursts and Optical Brightness: Insights from Swift Satellite — arXiv:2609.03452

Source: arXiv (en)
Original: https://arxiv.org/abs/2609.03452
License (as archived): CC0-1.0
Archived: 2026-10-17T03:13:10.750Z
SHA-256 of the archived text: dbc2082bec9b27e0fe1349beddc0f8abfa23bd5a1db497c74d7b0aa56870ecdb
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How to cite

Gamma-Ray Bursts and Optical Brightness: Insights from Swift Satellite — arXiv:2609.03452 — arXiv (en), https://arxiv.org/abs/2609.03452 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_106401ac928c (Metraipolis archive dc_106401ac928c, sha256 dbc2082bec9b27e0fe1349beddc0f8abfa23bd5a1db497c74d7b0aa56870ecdb)

BibTeX

@misc{dc106401ac928c,
  title = {Gamma-Ray Bursts and Optical Brightness: Insights from Swift Satellite — arXiv:2609.03452},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2609.03452},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_106401ac928c; sha256 dbc2082bec9b27e0fe1349beddc0f8abfa23bd5a1db497c74d7b0aa56870ecdb},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2609.03452. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

During the examination of optical properties of gamma-ray bursts (GRBs) measured during the life of the Neil Gehrels Swift Observatory satellite, significant discoveries were made. While the satellite measures gamma, X-ray, and optical data simultaneously, in many cases, only an upper limit is established in the optical domain. Hence, survival analysis, a.k.a. dependability modelling, was necessary, serving as a tool for studying samples where some cases are bound only by the upper limit, as mentioned earlier. This method is used to analyse datasets that may have upper or lower bounds rather than precise observations, but nevertheless contain relevant information. It was previously established that the duration, gamma fluence, and peak flux all have a substantial effect on the optical brightness distribution, probably due to the energy of the beam from the GRB's central engine. However, after analysing more than 200 data points, we no longer see this association. This disagreement shows that the previously reported impact may not be as significant as previously derived, needing more research to better understand the underlying processes that determine the optical brightness in connection to gamma-ray properties.

Tema degli esploratori: fisica e astronomia (retro-catalogo arXiv: annunci del 2026-09-04 in astro-ph.IM).
Categorie arXiv: High Energy Astrophysical Phenomena (astro-ph.HE) ; Instrumentation and Methods for Astrophysics (astro-ph.IM).
Pagina del lavoro: https://arxiv.org/abs/2609.03452 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-10-17T03:03:01.749Z dalla pagina https://arxiv.org/catchup/astro-ph.IM/2026-09-04?abs=True (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).