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

• Published in: Journal of Cosmology and Astroparticle Physics
• Main Authors: Deaconu, C., Batten, L., Allison, P., Banerjee, O., Beatty, J. J., Belov, K., Besson, D. Z., Binns, W. R., Bugaev, V., Cao, P., Chen, C. H., Chen, P., Chen, Y., Clem, J. M., Connolly, A., Cremonesi, L., Dailey, B., Dowkontt, P. F., Fox, B. D., Gordon, J. W.H., Gorham, P. W., Hast, C., Hill, B., Hsu, S. Y., Huang, J. J., Hughes, K., Hupe, R., Israel, M. H., Liewer, K. M., Liu, T. C., Ludwig, A. B., Macchiarulo, L., Matsuno, S., McBride, K., Miki, C., Mulrey, K., Nam, J., Naudet, C., Nichol, R. J., Novikov, A., Oberla, E., Prohira, S., Prechelt, R., Rauch, B. F., Ripa, J., Roberts, J. M., Romero-Wolf, A., Rotter, B., Russell, J. W., Saltzberg, D., Seckel, D., Schoorlemmer, H., Shiao, J., Stafford, S., Stockham, J., Stockham, M., Strutt, B., Sutherland, M. S., Varner, G. S., Vieregg, A. G., Wang, N., Wang, S. H., Wissel, S. A.
• Language: unknown
• Published: 2023
• Subjects: 79 ASTRONOMY AND ASTROPHYSICS; Antarctic; The Antarctic; Antarc*; Ice Sheet
• Online Access: http://www.osti.gov/servlets/purl/1798815; https://www.osti.gov/biblio/1798815; https://doi.org/10.1088/1475-7516/2021/04/017

The ANtarctic Impulsive Transient Antenna (ANITA) long-duration balloon experiment is sensitive to interactions of ultrahigh-energy (E>10 18 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. Finally, we proceed to place upper limits on the source classes. We further comment on potential application of this methodology to more sensitive future instruments.