Precession of neutrino-cooled accretion disks in gamma-ray burst engines

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dc.creatorReynoso, Matias M.
dc.creatorRomero, Gustavo E.
dc.creatorSampayo, Oscar A.
dc.date2005-11-22
dc.date2006-07-14
dc.date.accessioned2026-07-07T06:45:17Z
dc.date.available2026-07-07T06:45:17Z
dc.descriptionWe study the precession of accretion disks in the context of gamma-ray burst inner engines. With an accretion disk model that allows for neutrino cooling, we evaluate the possible periods of disk precession and nutation due to the Lense-Thirring effect. Assuming jet ejection perpendicular to the disk midplane and a typical intrinsic time dependence for the burst, we find possible gamma-ray light curves with temporal microstructure similar to what is observed in some subsamples. We conclude that the precession and nutation of a neutrino-cooled accretion disk in the burst engine might be responsible for some events, especially those with a slow rise and a fast decay.
dc.description7 pages, 8 figures, accepted for publication in A&A
dc.identifierhttps://arxiv.org/abs/astro-ph/0511639
dc.identifierhttp://arxiv.org/abs/astro-ph/0511639
dc.identifierAstron. Astrophys. 454: 11-16, 2006
dc.identifierdoi:10.1051/0004-6361:20054564
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/103009
dc.subjectAstrophysics
dc.titlePrecession of neutrino-cooled accretion disks in gamma-ray burst engines
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