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ANTARES search for point sources of neutrinos using astrophysical catalogs: a likelihood analysis
- Source :
- Astrophys.J., Astrophys.J., 2021, 911 (1), pp.48. ⟨10.3847/1538-4357/abe53c⟩, Astrophysical Journal, 911(1):48. IOP Publishing Ltd., UPCommons. Portal del coneixement obert de la UPC, Universitat Politècnica de Catalunya (UPC)
- Publication Year :
- 2021
-
Abstract
- A search for astrophysical pointlike neutrino sources using the data collected by the ANTARES detector between 2007 January 29 and 2017 December 31 is presented. A likelihood 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 subsample of the Fermi 3LAC catalog of blazars, (b) a jet-obscured population of active galactic nuclei, (c) a sample of hard X-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 catalog of radio galaxies with an equal-weights hypothesis, with a pre-trial p-value equivalent to a 2.8σ excess, which is equivalent to 1.6σ 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 Fermi 3LAC sample, with five ANTARES events located less than one degree from the source. This blazar showed evidence of flaring activity in Fermi data, in spacetime coincidence with a high-energy track detected by IceCube. An a posteriori significance of 2.6σ for the combination of ANTARES and IceCube data is reported.
- Subjects :
- Astrofísica
010504 meteorology & atmospheric sciences
Radio galaxy
Astrophysics
astrophysical catalogs
01 natural sciences
IceCube
Astronomy data analysis (1858)
Investigació quantitativa
010303 astronomy & astrophysics
Physics
High Energy Astrophysical Phenomena (astro-ph.HE)
education.field_of_study
neutrinos, astrophysical catalogs, likelihood analysis
Astrophysics::Instrumentation and Methods for Astrophysics
neutrinos
space-time
Neutrino astronomy
stacking
Neutrino
Astrophysics - High Energy Astrophysical Phenomena
Particle astrophysics
Catalogs (205)
Active galactic nucleus
Astrophysics::High Energy Astrophysical Phenomena
Population
FOS: Physical sciences
Astrophysics::Cosmology and Extragalactic Astrophysics
GLAST
VHE
Partícules (Física nuclear)
blazar
muon
0103 physical sciences
Particle astrophysics (96)
AGN
education
Blazar
0105 earth and related environmental sciences
Neutrino astronomy (1100)
Particles (Nuclear physics)
ANTARES
galaxy: radio wave
likelihood analysis
Astronomy and Astrophysics
neutrino: particle source
tracks
Galaxy
Space and Planetary Science
gamma ray
correlation
Física::Astronomia i astrofísica [Àrees temàtiques de la UPC]
Astronomy data analysis
Catalogs
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Quantitative research
Fermi Gamma-ray Space Telescope
Subjects
Details
- Language :
- English
- ISSN :
- 0004637X
- Database :
- OpenAIRE
- Journal :
- Astrophys.J., Astrophys.J., 2021, 911 (1), pp.48. ⟨10.3847/1538-4357/abe53c⟩, Astrophysical Journal, 911(1):48. IOP Publishing Ltd., UPCommons. Portal del coneixement obert de la UPC, Universitat Politècnica de Catalunya (UPC)
- Accession number :
- edsair.doi.dedup.....35af53e5889ca099654d555905227757