Adrian-Martinez S. auteur aut IRD Ageron M. auteur aut IRD Albert A. auteur aut IRD Al Samarai I. auteur aut IRD Andre M. auteur aut IRD Anton G. auteur aut IRD Ardid M. auteur aut IRD Aubert J. J. auteur aut IRD Baret B. auteur aut IRD Barrios-Marti J. auteur aut IRD Basa S. auteur aut IRD Bertin V. auteur aut IRD Biagi S. auteur aut IRD Bogazzi C. auteur aut IRD Bormuth R. auteur aut IRD Bou-Cabo M. auteur aut IRD Bouwhuis M. C. auteur aut IRD Bruijnk R. auteur aut IRD Brunner J. auteur aut IRD Busto J. auteur aut IRD Capone A. auteur aut IRD Caramete L. auteur aut IRD Carr J. auteur aut IRD Chiarusi T. auteur aut IRD Circella M. auteur aut IRD Coniglione R. auteur aut IRD Costantini H. auteur aut IRD Coyle P. auteur aut IRD Creusot A. auteur aut IRD Dekeyser I. auteur aut IRD Deschamps A. auteur aut IRD Bonis G. auteur aut IRD Distefano C. auteur aut IRD Donzaud C. auteur aut IRD Dornic D. auteur aut IRD Drouhin D. auteur aut IRD Dumas A. auteur aut IRD Eberl T. auteur aut IRD Elsasser D. auteur aut IRD Enzenhofer A. auteur aut IRD Fehn K. auteur aut IRD Feis I. auteur aut IRD Fermani P. auteur aut IRD Folger F. auteur aut IRD Fusco L. A. auteur aut IRD Galata S. auteur aut IRD Gay P. auteur aut IRD Geisselsoder S. auteur aut IRD Geyer K. auteur aut IRD Giordano V. auteur aut IRD Gleixner A. auteur aut IRD Gracia-Ruiz R. auteur aut IRD Graf K. auteur aut IRD van Haren H. auteur aut IRD Heijboer A. J. auteur aut IRD Hello Yann auteur aut IRD et al. auteur aut IRD text journalArticle eng text/pdf born digital access 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. specialized gamma ray burst experiments neutrino astronomy X-ray telescopes 060 020 2 062 [25 ] 2016 1475-7516 https://www.documentation.ird.fr/hor/fdi:010092328 10.1088/1475-7516/2016/02/062 1475-7516 [F B010092328] https://www.documentation.ird.fr/hor/fdi:010092328 https://www.documentation.ird.fr/intranet/publi/2024-11/010092328.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2016-05-03 2024-11-15 fdi:010092328 fre