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

Abstract

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.

12 pages, 11 figures, accepted for publication in A&A

References in corpus (12)

• Flavor Composition and Energy Spectrum of Astrophysical Neutrinos
• Measurement of the atmospheric neutrino energy spectrum from 100 GeV to 400 TeV with IceCube
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• The proton low-mass microquasar: high-energy emission
• Magnetic field effects on neutrino production in microquasars
• First order Fermi acceleration driven by magnetic reconnection
• Simulating radiation and kinetic processes in relativistic plasmas
• An inhomogeneous lepto-hadronic model for the radiation of relativistic jets. Application to XTE J1118+480
• Gravitational radiation from precessing accretion disks in gamma-ray bursts
• Keck Infrared Observations of GRO J0422+32 in Quiescence
• Particle transport in magnetized media around black holes and associated radiation
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Cited by in corpus (5)

• The Case for a Low Mass Black Hole in the Low Mass X-ray Binary V1408 Aquilae (= 4U 1957+115)
• The content of astrophysical jets
• Time-dependent search for neutrino emission from x-ray binaries with the ANTARES telescope
• Highly collimated microquasar jets as efficient cosmic-ray sources
• A model for the polarization of the high-energy radiation from accreting black holes: the case of XTE J1118+480