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SEARCHES FOR POINT-LIKE AND EXTENDED NEUTRINO SOURCES CLOSE TO THE GALACTIC CENTER USING THE ANTARES NEUTRINO TELESCOPE

Adrian-Martinez, S ; Albert, A ; Andre, M ; ANGHINOLFI, M ; Anton, G ; Ardid, M ; Aubert, J-J ; Baret, B ; Barrios-Marti, J ; Basa, S

Astrophysical journal. Letters, 2014-05, Vol.786 (1), p.1-5 [Periódico revisado por pares]

United States: Bristol : IOP Publishing

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Título:
SEARCHES FOR POINT-LIKE AND EXTENDED NEUTRINO SOURCES CLOSE TO THE GALACTIC CENTER USING THE ANTARES NEUTRINO TELESCOPE
Autor: Adrian-Martinez, S ; Albert, A ; Andre, M ; ANGHINOLFI, M ; Anton, G ; Ardid, M ; Aubert, J-J ; Baret, B ; Barrios-Marti, J ; Basa, S
Assuntos: Astrofísica ; Astronomia i astrofísica ; Astroparticle physics ; ASTROPHYSICS ; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ; Confidence intervals ; COORDINATES ; COSMIC NEUTRINOS ; ENERGY SPECTRA ; Fluctuation ; FLUCTUATIONS ; Flux ; Física ; GALAXIES ; Galaxy: center ; GEV RANGE ; High Energy Astrophysical Phenomena ; High Energy Physics - Experiment ; Instrumentation and Methods for Astrophysic ; MUON NEUTRINOS ; Muons ; Neutrino astrophysics ; NEUTRINO DETECTION ; Neutrinos ; Neutrins ; Physics ; POINT SOURCES ; Sciences of the Universe ; Searching ; SIGNALS ; TELESCOPES ; Àrees temàtiques de la UPC
É parte de: Astrophysical journal. Letters, 2014-05, Vol.786 (1), p.1-5
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: A search for cosmic neutrino sources using six years of data collected by the ANTARES neutrino telescope has been performed. Clusters of muon neutrinos over the expected atmospheric background have been looked for. No clear signal has been found. The most signal-like accumulation of events is located at equatorial coordinates R.A. = -46[degrees].8 and decl. = -64[degrees].9 and corresponds to a 2.2[sigma] background fluctuation. In addition, upper limits on the flux normalization of an E super(-2) muon neutrino energy spectrum have been set for 50 pre-selected astrophysical objects. Finally, motivated by an accumulation of seven events relatively close to the Galactic Center in the recently reported neutrino sample of the IceCube telescope, a search for point sources in a broad region around this accumulation has been carried out. No indication of a neutrino signal has been found in the ANTARES data and upper limits on the flux normalization of an E super(-2) energy spectrum of neutrinos from point sources in that region have been set. The 90% confidence level upper limits on the muon neutrino flux normalization vary between 3.5 and 5.1 X 10 super(-8) GeV cm super(-2) s super(-1), depending on the exact location of the source.
Editor: United States: Bristol : IOP Publishing
Idioma: Inglês

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SEARCHES FOR POINT-LIKE AND EXTENDED NEUTRINO SOURCES CLOSE TO THE GALACTIC CENTER USING THE ANTARES NEUTRINO TELESCOPE

Adrian-Martinez, S ; Albert, A ; Andre, M ; ANGHINOLFI, M ; Anton, G ; Ardid, M ; Aubert, J-J ; Baret, B ; Barrios-Marti, J ; Basa, S

United States: Bristol : IOP Publishing

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