SIMBAD references

2020MNRAS.497.2553K - Mon. Not. R. Astron. Soc., 497, 2553-2561 (2020/September-3)

Multimessenger observations of counterparts to IceCube-190331A.

KRAUSS F., CALAMARI E., KEIVANI A., COLEIRO A., EVANS P.A., FOX D.B., KENNEA J.A., MESZAROS P., MURASE K., RUSSELL T.D., SANTANDER M. and TOHUVAVOHU A.

Abstract (from CDS):

High-energy neutrinos are a promising tool for identifying astrophysical sources of high and ultra-high energy cosmic rays (UHECRs). Prospects of detecting neutrinos at high energies (>=TeV) from blazars have been boosted after the recent association of IceCube-170922A and TXS 0506+056. We investigate the high-energy neutrino, IceCube-190331A, a high-energy starting event (HESE) with a high likelihood of being astrophysical in origin. We initiated a Swift/XRT and UVOT tiling mosaic of the neutrino localization and followed up with ATCA radio observations, compiling a multiwavelength spectral energy distribution (SED) for the most likely source of origin. NuSTAR observations of the neutrino location and a nearby X-ray source were also performed. We find two promising counterpart in the 90 per cent confidence localization region and identify the brightest as the most likely counterpart. However, no Fermi/LAT γ-ray source and no prompt Swift/BAT source is consistent with the neutrino event. At this point, it is unclear whether any of the counterparts produced IceCube-190331A. We note that the Helix Nebula is also consistent with the position of the neutrino event and we calculate that associated particle acceleration processes cannot produce the required energies to generate a high-energy HESE neutrino.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): neutrinos - galaxies: active - BL Lacertae objects: general - galaxies: jets - quasars: general - galaxies: Seyfert

Status at CDS : Examining the need for a new acronym.

Simbad objects: 12

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2021.02.26-09:04:51

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