Carregant...
Fitxers
Tipus de document
ArticleVersió
Versió publicadaData de publicació
Tots els drets reservats
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/151162
Nonthermal processes and neutrino emission from the black hole GRO J0422+32 in a bursting state
Títol de la revista
Director/Tutor
ISSN de la revista
Títol del volum
Recurs relacionat
Resum
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 $\sim 1$ MeV was observed, which suggests that nonthermal processes should have occurred in the system. 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. 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. The short duration of the flares ($\sim$ 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. 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.
Matèries
Matèries (anglès)
Citació
Citació
VIEYRO, F. l., SESTAYO, Y., ROMERO, Gustavo e., PAREDES I POY, Josep maria. Nonthermal processes and neutrino emission from the black hole GRO J0422+32 in a bursting state. _Astronomy & Astrophysics_. 2012. Vol. 546, núm. A46. [consulta: 24 de gener de 2026]. ISSN: 0004-6361. [Disponible a: https://hdl.handle.net/2445/151162]