High-energy emitting BL Lacs and high-energy neutrinos - Prospects for the direct association with IceCube and KM3NeT

Abstract

The origin of the high-energy flux of neutrinos detected by IceCube is still unknown. Recent works report the evidence for a possible positional correlation between the reconstructed neutrino arrival directions and the positions in the sky of low power, high-energy emitting BL Lac objects (HBL). Assuming that $\gamma$-ray emitting HBL form the bulk of the sources of high-energy neutrinos above 100 TeV, we intend to calculate the number of events expected to be detected for each source by IceCube and KM3NeT. Based on a simple theoretically-motivated framework inspired by the structured jet scenario for these sources, we postulate a direct proportionality between high-energy $\gamma$-ray and neutrino fluxes. We calculate the expected neutrino event rate for the HBL sources of the Second Fermi-LAT Catalog of High-Energy Sources (2FHL) for IceCube and the presently under construction KM3NeT using declination-dependent and exposure-weighted effective areas. We provide a list of 2FHL HBL with the calculated number of events. For IceCube, the derived count rate for several sources is relatively high, of the order of $\lesssim$1 yr${}^{-1}$, consistently with the recent findings of a possible positional correlation. For KM3NeT the calculated rates are higher, with several sources with expected rate exceeding 1 yr${}^{-1}$. This, coupled with the improved angular resolution, implies that the HBL origin can be effectively tested with few years of observation of KM3NeT (and IceCube Gen2, for which similar performances are foreseen) through the direct association of neutrinos and single HBL. Our results show that if -- as hinted by recent works -- HBL represent a possible population of high-energy neutrino emitters, several single sources should be identified in few years of exposure of KM3NeT, highlighting the importance of the improved angular resolution anticipated for KM3NeT and IceCube Gen2.

arXiv comment8 pages, 3 figures, accepted for publication in A&A

References in corpus (52)

• Unified Schemes for Radio-Loud Active Galactic Nuclei
• Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector
• Observation of High-Energy Astrophysical Neutrinos in Three Years of IceCube Data
• High Energy Neutrinos from Cosmological Gamma-Ray Burst Fireballs
• Letter of Intent for KM3NeT 2.0
• A theoretical unifying scheme for gamma-ray bright blazars
• The spectrum of isotropic diffuse gamma-ray emission between 100 MeV and 820 GeV
• Leptonic and Hadronic Modeling of Fermi-Detected Blazars
• General Relativistic Magnetohydrodynamic Simulations of Jet Formation and Large-Scale Propagation from Black Hole Accretion Systems
• Structured jets in TeV BL Lac objects and radiogalaxies
• First Year Performance of The IceCube Neutrino Telescope
• A combined maximum-likelihood analysis of the high-energy astrophysical neutrino flux measured with IceCube
• Evidence for Astrophysical Muon Neutrinos from the Northern Sky with IceCube
• Hidden Cosmic-Ray Accelerators as an Origin of TeV-PeV Cosmic Neutrinos
• Diffuse Neutrino Intensity from the Inner Jets of Active Galactic Nuclei: Impacts of External Photon Fields and the Blazar Sequence
• 2FHL: The Second Catalog of Hard Fermi-LAT Sources
• The Cumulative Bakground of High-Energy Neutrinos from Starburst Galaxies
• Coincidence of a high-fluence blazar outburst with a PeV-energy neutrino event
• Neutral Beams from Blazar Jets
• Probing the Galactic Origin of the IceCube Excess with Gamma-Rays
• Star-forming galaxies as the origin of diffuse high-energy backgrounds: Gamma-ray and neutrino connections, and implications for starburst history
• From the Blazar Sequence to the Blazar Envelope: Revisiting the Relativistic Jet Dichotomy in Radio-loud AGN
• Photohadronic origin of $\gamma$-ray BL Lac emission: implications for IceCube neutrinos
• Resolving the Extragalactic $\gamma$-ray Background above 50 GeV with Fermi-LAT
• Spine-sheath layer radiative interplay in subparsec-scale jets and the TeV emission from M87
• Extreme blazars as counterparts of IceCube astrophysical neutrinos
• Secondary photons and neutrinos from cosmic rays produced by distant blazars
• Multiwavelength Study of Quiescent States of Mrk 421 with Unprecedented Hard X-Ray Coverage Provided by NuSTAR in 2013
• Are both BL Lacs and pulsar wind nebulae the astrophysical counterparts of IceCube neutrino events?
• Pinpointing Extragalactic Neutrino Sources in Light of Recent IceCube Observations
• Formation of dynamical structures in relativistic jets: the FRI case
• The IceCube Neutrino Observatory - Contributions to ICRC 2015 Part II: Atmospheric and Astrophysical Diffuse Neutrino Searches of All Flavors
• PeV neutrinos from intergalactic interactions of cosmic rays emitted by active galactic nuclei
• A Sample of Low Redshift BL Lacs. I. The Radio Data
• The jet-disc connection in AGN
• TANAMI monitoring of Centaurus A: The complex dynamics in the inner parsec of an extragalactic jet
• Structured jets in BL Lac objects: efficient PeV neutrino factories?
• Neutrinos in IceCube from AGN's
• High-energy gamma-ray and neutrino backgrounds from clusters of galaxies and radio constraints
• First combined search for neutrino point-sources in the Southern Hemisphere with the ANTARES and IceCube neutrino telescopes
• High Energy Neutrinos from the TeV Blazar 1ES 1959+650
• Extragalactic plus Galactic model for IceCube neutrino events
• Time-dependent neutrino emission from Mrk 421 during flares and predictions for IceCube
• First-Epoch VLBA Imaging of Twenty New TeV Blazars
• Implications of a PeV neutrino spectral cutoff in GRB models
• Galaxy Clusters as Reservoirs of Heavy Dark Matter and High-Energy Cosmic Rays: Constraints from Neutrino Observations
• The KM3NeT deep-sea neutrino telescope
• IceCube Sensitivity for Neutrino Flux from Fermi Blazars in Quiescent States
• Constraints on The Hadronic Content of Gamma Ray Bursts
• High Energy Neutrinos from Recent Blazar Flares
• Implications of Fermi-LAT observations on the origin of IceCube neutrinos
• Very-high-energy gamma-ray emission from high-redshift blazars

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• The blazar TXS 0506+056 associated with a high-energy neutrino: insights into extragalactic jets and cosmic ray acceleration
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• On the direct correlation between gamma-rays and PeV neutrinos from blazars
• High energy neutrino flux from individual blazar flares
• A Neutral Beam Model for High-Energy Neutrino Emission from the Blazar TXS 0506+056
• Interpretation of the diffuse astrophysical neutrino flux in terms of the blazar sequence
• Broadband characterisation of the very intense TeV flares of the blazar 1ES 1959+650 in 2016
• Neutrino emission from BL Lac objects: the role of radiatively inefficient accretion flows
• Complementarity of Stacking and Multiplet Constraints on the Blazar Contribution to the Cumulative High-Energy Neutrino Intensity
• Apparent superluminal core expansion and limb brightening in the candidate neutrino blazar TXS 0506+056
• AGILE detection of a candidate gamma-ray precursor to the ICECUBE-160731 neutrino event
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• Fermi-LAT counterparts of IceCube neutrinos above 100 TeV
• EeV Astrophysical neutrinos from FSRQs?
• On the Detection Potential of Blazar Flares for Current Neutrino Telescopes
• How bright can the brightest neutrino source be?
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