ANTARES search for point-sources of neutrinos using astrophysical catalogs: a likelihood stacking analysis
Abstract
A search for astrophysical point-like neutrino sources using the data collected by the ANTARES detector between January 29, 2007 and December 31, 2017 is presented. A likelihood stacking method is used to assess the significance of an excess of muon neutrinos inducing track-like events in correlation with the location of a list of possible sources. Different sets of objects are tested in the analysis: a) a sub-sample of the \textit{Fermi} 3LAC catalog of blazars, b) a jet-obscured AGN population, c) a sample of soft gamma-ray selected radio galaxies, d) a star-forming galaxy catalog , and e) a public sample of 56 very-high-energy track events from the IceCube experiment. None of the tested sources shows a significant association with the sample of neutrinos detected by ANTARES. The smallest p-value is obtained for the radio galaxies catalog with an equal weights hypothesis, with a pre-trial p-value equivalent to a excess, equivalent to post-trial. In addition, the results of a dedicated analysis for the blazar MG3 J225517+2409 are also reported: this source is found to be the most significant within the \textit{Fermi} 3LAC sample, with 5 ANTARES events located at less than one degree from the source. This blazar showed evidence of flaring activity in \textit{Fermi} data, in space-time coincidence with a high-energy track detected by IceCube. An \emph{a posteriori} significance of for the combination of ANTARES and IceCube data is reported.
Keywords
Cite
@article{arxiv.2012.15082,
title = {ANTARES search for point-sources of neutrinos using astrophysical catalogs: a likelihood stacking analysis},
author = {A. Albert and M. André and M. Anghinolfi and G. Anton and M. Ardid and J. -J. Aubert and J. Aublin and B. Baret and S. Basa and B. Belhorma and V. Bertin and S. Biagi and M. Bissinger and J. Boumaaza and M. Bouta and M. C. Bouwhuis and H. Branzas and R. Bruijn and J. Brunner and J. Busto and A. Capone and L. Caramete and J. Carr and V. Carretero and S. Celli and M. Chabab and T. N. Chau and R. Moursli and T. Chiarusi and M. Circella and A. Coleiro and M. Colomer-Molla and R. Coniglione and P. Coyle and A. Creusot and A. F. Diaz and G. de Wasseige and A. Deschamps and C. Distefano and I. di Palma and A. Domi and C. Donzaud and D. Dornic and D. Drouhin and T. Eberl and N. Khayati and A. Enzenhofer and P. Fermani and G. Ferrara and F. Filippini and L. Fusco and Y. Gatelet and P. Gay and H. Glotin and R. Gozzini and R. Gracia and K. Graf and C. Guidi and S. Hallmann and H. Haren and A. J. Heijboer and Y. Hello and J. J. Hernandez-Rey and J. Hössl and J. Hofestädt and F. Huang and G. Illuminati and C. W. James and B. Jisse-Jung and M. Jong and P. Jong and M. Jongen and M. Kadler and O. Kalekin and U. Katz and N. R. Khan-Chowdhury and A. Kouchner and I. Kreykenbohm and V. Kulikovskiy and R. Lahmann and R. Breton and D. Lefèvre and E. Leonora and G. Levi and M. Lincetto and D. Lopez-Coto and S. Loucatos and L. Maderer and J. Manczak and M. Marcelin and A. Margiotta and A. Marinelli and J. A. Martinez-Mora and S. Mazzou and K. Melis and P. Migliozzi and M. Moser and A. Moussa and R. Muller and L. Nauta and S. Navas and E. Nezri and A. Nunez-Castineyra and B. O'Fearraigh and M. Organokov and G. E. Palavas and C. Pellegrino and M. Perrin-Terrin and P. Piattelli and C. Pieterse and C. Poirè and V. Popa and T. Pradier and N. Randazzo and S. Reck and G. Riccobene and F. Greus and D. F. Samtleben and A. Sanchez-Losa and M. Sanguineti and P. Sapienza and J. Schnabel and F. Schussler and M. Spurio and Th. Stolarczyk and M. Taiuti and Y. Tayalati and T. Thakore and S. J. Tingay and B. Vallage and V. Elewyck and F. Versari and S. Viola and D. Vivolo and J. Wilms and A. Zegarelli and J. D. Zornoza and J. Zuniga and S. Buson},
journal= {arXiv preprint arXiv:2012.15082},
year = {2021}
}