A search for ultrahigh-energy neutrinos associated with astrophysical sources using the third flight of ANITA

Collaboration
Oct 6, 2020
23 pages
Published in:
  • JCAP 04 (2021) 017
  • Published: Apr 7, 2021
e-Print:
Experiments:

Citations per year

20202021202220231532
Abstract: (IOP)
The ANtarctic Impulsive Transient Antenna (ANITA) long-duration balloon experiment is sensitive to interactions of ultrahigh-energy (E>1018 eV) neutrinos in the Antarctic ice sheet. The third flight of ANITA, lasting 22 days, began in December 2014. We develop a methodology to search for energetic neutrinos spatially and temporally coincident with potential source classes in ANITA data. This methodology is applied to several source classes: the potential IceCube-identified neutrino sources TXS 0506+056 and NGC 1068, flaring high-energy blazars reported by the Fermi All-Sky Variability Analysis, gamma-ray bursts, and supernovae. Among searches within the five source classes, one candidate was identified as associated with SN 2015D, although not at a statistically significant level. We proceed to place upper limits on the source classes. We further comment on potential application of this methodology to more sensitive future instruments.
Note:
  • 23 pages, 7 figures, version accepted to JCAP
  • neutrino: particle source
  • gamma ray: burst
  • ANITA
  • blazar
  • supernova
  • radio wave: detector
  • IceCube
  • neutrino: UHE
  • ice
  • TeV