Neutrino signal from gamma-ray loud binaries powered by high energy protons

Abstract

We present a hadronic model of activity for Galactic gamma-ray-loud binaries, in which the multi-TeV neutrino flux from the source can be much higher and/or harder than the detected TeV gamma-ray flux. This is related to the fact that most neutrinos are produced in pp interactions close to the bright massive star, in a region optically thick for the TeV gamma-rays. Considering the specific example of LS I +61o 303, we derive upper bounds for neutrino fluxes from various proton injection spectra compatible with the observed multi-wavelength spectrum. At this upper level of neutrino emission, we demonstrate that ICECUBE will not only detect this source at 5 sigma C.L. after one year of operation, but, after 3 years of exposure, will also collect a sample marginally sufficient to constrain the spectral characteristics of the neutrino signal, directly related to the underlying source acceleration mechanisms.

13 pages, 8 figures

References in corpus (13)

• VERITAS Observations of the gamma-Ray Binary LS I +61 303
• Accretion vs colliding wind models for the gamma-ray binary LS I +61 303: an assessment
• On the formation of TeV radiation in LS 5039
• Physics Reach of High-Energy and High-Statistics IceCube Atmospheric Neutrino Data
• HESS J0632+057 : A new gamma-ray binary?
• INTEGRAL and XMM-Newton observations of LSI +61 303
• Five years of searches for point sources of astrophysical neutrinos with the AMANDA-II neutrino telescope
• Propagation of very high energy gamma-rays inside massive binaries LS 5039 and LSI +61 303
• Very Energetic Gamma-Rays from Microquasars and Binary Pulsars
• Leptonic secondary emission in a hadronic microquasar model
• The changing milliarcsecond radio morphology of the gamma-ray binary LS 5039
• LS I +61 303 as a potential neutrino source on the light of MAGIC results
• Reconstruction of Composite Events in Neutrino Telescopes

Cited by in corpus (6)

• PeV photon and neutrino flares from galactic gamma-ray binaries
• IceCube Sensitivity for Neutrino Flux from Fermi Blazars in Quiescent States
• Search for directional associations between Baikal Gigaton Volume Detector neutrino-induced cascades and high-energy astrophysical sources
• PeV proton acceleration in Gamma-ray Binaries
• Relativistic astrospheres of gamma-ray binaries: modeling of non-thermal processes
• How many VHE gamma-ray binaries with young pulsars can be observed?