Nonthermal processes and neutrino emission from the black hole GRO J0422+32 in a bursting state

<b>Context.</b> GRO J0422+32 is a member of the class of low-mass X-ray binaries (LMXBs). It was discovered during an outburst in 1992. During the entire episode a persistent power-law spectral component extending up to ∼1 MeV was observed, which suggests that nonthermal processes should...

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Autores principales: Vieyro, Florencia Laura, Sestayo, Y., Romero, Gustavo Esteban, Paredes, J. M.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Ciencias Astronómicas
Neutrinos
Radiation mechanisms: non-thermal
X-rays: binaries
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84607
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84607
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
Neutrinos
Radiation mechanisms: non-thermal
X-rays: binaries
spellingShingle Ciencias Astronómicas
Neutrinos
Radiation mechanisms: non-thermal
X-rays: binaries
Vieyro, Florencia Laura
Sestayo, Y.
Romero, Gustavo Esteban
Paredes, J. M.
Nonthermal processes and neutrino emission from the black hole GRO J0422+32 in a bursting state
topic_facet Ciencias Astronómicas
Neutrinos
Radiation mechanisms: non-thermal
X-rays: binaries
description <b>Context.</b> GRO J0422+32 is a member of the class of low-mass X-ray binaries (LMXBs). It was discovered during an outburst in 1992. During the entire episode a persistent power-law spectral component extending up to ∼1 MeV was observed, which suggests that nonthermal processes should have occurred in the system. <b>Aims.</b> We study relativistic particle interactions and the neutrino production in the corona of GRO J0422+32, and explain the behavior of GRO J0422+32 during its recorded flaring phase. <b>Methods.</b> We have developed a magnetized corona model to fit the spectrum of GRO J0422+32 during the low-hard state. We also estimate neutrino emission and study the detectability of neutrinos with 1 km 3 detectors, such as IceCube. <b>Results.</b> The short duration of the flares (∼hours) and an energy cutoff around a few TeV in the neutrino spectrum make neutrino detection difficult. There are, however, many factors that can enhance neutrino emission. <b>Conclusions.</b> The northern-sky coverage and full duty cycle of IceCube make it possible to detect neutrino bursts from objects of this kind through time-dependent analysis.
format Articulo
Articulo
author Vieyro, Florencia Laura
Sestayo, Y.
Romero, Gustavo Esteban
Paredes, J. M.
author_facet Vieyro, Florencia Laura
Sestayo, Y.
Romero, Gustavo Esteban
Paredes, J. M.
author_sort Vieyro, Florencia Laura
title Nonthermal processes and neutrino emission from the black hole GRO J0422+32 in a bursting state
title_short Nonthermal processes and neutrino emission from the black hole GRO J0422+32 in a bursting state
title_full Nonthermal processes and neutrino emission from the black hole GRO J0422+32 in a bursting state
title_fullStr Nonthermal processes and neutrino emission from the black hole GRO J0422+32 in a bursting state
title_full_unstemmed Nonthermal processes and neutrino emission from the black hole GRO J0422+32 in a bursting state
title_sort nonthermal processes and neutrino emission from the black hole gro j0422+32 in a bursting state
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/84607
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AT sestayoy nonthermalprocessesandneutrinoemissionfromtheblackholegroj042232inaburstingstate
AT romerogustavoesteban nonthermalprocessesandneutrinoemissionfromtheblackholegroj042232inaburstingstate
AT paredesjm nonthermalprocessesandneutrinoemissionfromtheblackholegroj042232inaburstingstate
bdutipo_str Repositorios
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