%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Adrian-Martinez, S.
%A Ageron, M.
%A Albert, A.
%A Al Samarai, I.
%A Andre, M.
%A Anton, G.
%A Ardid, M.
%A Aubert, J. J.
%A Baret, B.
%A Barrios-Marti, J.
%A Basa, S.
%A Bertin, V.
%A Biagi, S.
%A Bogazzi, C.
%A Bormuth, R.
%A Bou-Cabo, M.
%A Bouwhuis, M. C.
%A Bruijnk, R.
%A Brunner, J.
%A Busto, J.
%A Capone, A.
%A Caramete, L.
%A Carr, J.
%A Chiarusi, T.
%A Circella, M.
%A Coniglione, R.
%A Costantini, H.
%A Coyle, P.
%A Creusot, A.
%A Dekeyser, I.
%A Deschamps, A.
%A Bonis, G.
%A Distefano, C.
%A Donzaud, C.
%A Dornic, D.
%A Drouhin, D.
%A Dumas, A.
%A Eberl, T.
%A Elsasser, D.
%A Enzenhofer, A.
%A Fehn, K.
%A Feis, I.
%A Fermani, P.
%A Folger, F.
%A Fusco, L. A.
%A Galata, S.
%A Gay, P.
%A Geisselsoder, S.
%A Geyer, K.
%A Giordano, V.
%A Gleixner, A.
%A Gracia-Ruiz, R.
%A Graf, K.
%A van Haren, H.
%A Heijboer, A. J.
%A Hello, Yann
%A et al.
%T Optical and X-ray early follow-up of ANTARES neutrino alerts
%D 2016
%L PAR00014440
%G ENG
%J Journal of Cosmology and Astroparticle Physics
%@ 1475-7516
%K gamma ray burst experiments ; neutrino astronomy ; X-ray telescopes
%M ISI:000372467600063
%N 2
%P 062
%R 10.1088/1475-7516/2016/02/062
%U https://www.documentation.ird.fr/hor/PAR00014440
%W Horizon (IRD)
%X High-energy neutrinos could be produced in the interaction of charged cosmic rays with matter or radiation surrounding astrophysical sources. Even with the recent detection of extraterrestrial high-energy neutrinos by the IceCube experiment, no astrophysical neutrino source has yet been discovered. Transient sources, such as gamma-ray bursts, core-collapse supernovae, or active galactic nuclei are promising candidates. Multi-messenger programs offer a unique opportunity to detect these transient sources. By combining the information provided by the ANTARES neutrino telescope with information coming from other observatories, the probability of detecting a source is enhanced, allowing the possibility of identifying a neutrino progenitor from a single detected event. A method based on optical and X-ray follow-ups of high-energy neutrino alerts has been developed within the ANTARES collaboration. This method does not require any assumptions on the relation between neutrino and photon spectra other than time-correlation. This program, denoted as TAToO, triggers a network of robotic optical telescopes (TAROT and ROTSE) and the Swift-XRT with a delay of only a few seconds after a neutrino detection, and is therefore well-suited to search for fast transient sources. To identify an optical or Xray counterpart to a neutrino signal, the images provided by the follow-up observations are analysed with dedicated pipelines. A total of 42 alerts with optical and 7 alerts with Xray images taken with a maximum delay of 24 hours after the neutrino trigger have been analysed. No optical or X-ray counterparts associated to the neutrino triggers have been found, and upper limits on transient source magnitudes have been derived. The probability to reject the gamma-ray burst origin hypothesis has been computed for each alert.
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