TY - JOUR
T1 - High-energy neutrino flux from individual blazar flares
AU - Oikonomou, Foteini
AU - Murase, Kohta
AU - Padovani, Paolo
AU - Resconi, Elisa
AU - Mészáros, Peter
N1 - Publisher Copyright:
© 2019 The Author(s).
PY - 2019/11/1
Y1 - 2019/11/1
N2 - Motivated by the recently reported evidence of an association between a high-energy neutrino and a γ -ray flare from the blazar TXS 0506+056, we calculate the expected high-energy neutrino signal from past, individual flares, from 12 blazars, selected in declinations favourable for detection with IceCube. To keep the number of free parameters to a minimum, we mainly focus on BL Lac objects and assume the synchrotron self-Compton mechanism produces the bulk of the high-energy emission. We consider a broad range of the allowed parameter space for the efficiency of proton acceleration, the proton content of BL Lac jets, and the presence of external photon fields. To model the expected neutrino fluence, we use simultaneous multiwavelength observations. We find that in the absence of external photon fields and with jet proton luminosity normalized to match the observed production rate of ultrahighenergy cosmic rays, individual flaring sources produce a modest neutrino flux in IceCube, Nvμ,>100TeVIC,10 yr ≲ 10-3 muon neutrinos with energy exceeding 100 TeV, stacking 10 yr of flare periods selected in the >800 MeV Fermi energy range, from each source. Under optimistic assumptions about the jet proton luminosity and in the presence of external photon fields, we find that the two most powerful sources in our sample, AO0235+164, and OJ 287, would produce, in total, Nvμ, all flares, >100 TeVIC×10,10 yr ≈ 3 muon neutrinos during Fermi flaring periods, in future neutrino detectors with total instrumented volume ∼10 times larger than IceCube, or otherwise, constrain the proton luminosity of blazar jets.
AB - Motivated by the recently reported evidence of an association between a high-energy neutrino and a γ -ray flare from the blazar TXS 0506+056, we calculate the expected high-energy neutrino signal from past, individual flares, from 12 blazars, selected in declinations favourable for detection with IceCube. To keep the number of free parameters to a minimum, we mainly focus on BL Lac objects and assume the synchrotron self-Compton mechanism produces the bulk of the high-energy emission. We consider a broad range of the allowed parameter space for the efficiency of proton acceleration, the proton content of BL Lac jets, and the presence of external photon fields. To model the expected neutrino fluence, we use simultaneous multiwavelength observations. We find that in the absence of external photon fields and with jet proton luminosity normalized to match the observed production rate of ultrahighenergy cosmic rays, individual flaring sources produce a modest neutrino flux in IceCube, Nvμ,>100TeVIC,10 yr ≲ 10-3 muon neutrinos with energy exceeding 100 TeV, stacking 10 yr of flare periods selected in the >800 MeV Fermi energy range, from each source. Under optimistic assumptions about the jet proton luminosity and in the presence of external photon fields, we find that the two most powerful sources in our sample, AO0235+164, and OJ 287, would produce, in total, Nvμ, all flares, >100 TeVIC×10,10 yr ≈ 3 muon neutrinos during Fermi flaring periods, in future neutrino detectors with total instrumented volume ∼10 times larger than IceCube, or otherwise, constrain the proton luminosity of blazar jets.
UR - http://www.scopus.com/inward/record.url?scp=85075132028&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85075132028&partnerID=8YFLogxK
U2 - 10.1093/mnras/stz2246
DO - 10.1093/mnras/stz2246
M3 - Article
AN - SCOPUS:85075132028
SN - 0035-8711
VL - 489
SP - 4347
EP - 4366
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 3
ER -