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

Aims. We study the precession of accretion disks in the context of gamma-ray burst inner engines. Methods. 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. Results. Assuming jet eject...

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Detalles Bibliográficos
Autores principales:	Reynoso, M. M., Romero, Gustavo Esteban, Sampayo, Oscar Alfredo
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2006
Materias:	Ciencias Astronómicas Accretion, accretion disks Black hole physics Gamma-ray: bursts Neutrinos
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/83000
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-83000
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Astronómicas Accretion, accretion disks Black hole physics Gamma-ray: bursts Neutrinos
spellingShingle	Ciencias Astronómicas Accretion, accretion disks Black hole physics Gamma-ray: bursts Neutrinos Reynoso, M. M. Romero, Gustavo Esteban Sampayo, Oscar Alfredo Precession of neutrino-cooled accretion disks in gamma-ray burst engines
topic_facet	Ciencias Astronómicas Accretion, accretion disks Black hole physics Gamma-ray: bursts Neutrinos
description	Aims. We study the precession of accretion disks in the context of gamma-ray burst inner engines. Methods. 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. Results. 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 a temporal microstructure similar to what is observed in some subsamples. Conclusions. 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.
format	Articulo Articulo
author	Reynoso, M. M. Romero, Gustavo Esteban Sampayo, Oscar Alfredo
author_facet	Reynoso, M. M. Romero, Gustavo Esteban Sampayo, Oscar Alfredo
author_sort	Reynoso, M. M.
title	Precession of neutrino-cooled accretion disks in gamma-ray burst engines
title_short	Precession of neutrino-cooled accretion disks in gamma-ray burst engines
title_full	Precession of neutrino-cooled accretion disks in gamma-ray burst engines
title_fullStr	Precession of neutrino-cooled accretion disks in gamma-ray burst engines
title_full_unstemmed	Precession of neutrino-cooled accretion disks in gamma-ray burst engines
title_sort	precession of neutrino-cooled accretion disks in gamma-ray burst engines
publishDate	2006
url	http://sedici.unlp.edu.ar/handle/10915/83000
work_keys_str_mv	AT reynosomm precessionofneutrinocooledaccretiondisksingammarayburstengines AT romerogustavoesteban precessionofneutrinocooledaccretiondisksingammarayburstengines AT sampayooscaralfredo precessionofneutrinocooledaccretiondisksingammarayburstengines
bdutipo_str	Repositorios
_version_	1764820488159232002

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

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