S. Adrián-Martínez, I. Al Samarai, A. Albert, M. André, M. Anghinolfi, G. Anton, S. Anvar, M. Ardid, T. Astraatmadja, J-J. Aubert, B. Baret, S. Basa, V. Bertin, S. Biagi, C. Bigongiari, C. Bogazzi, M. Bou-Cabo, B. Bouhou, M. C. Bouwhuis, J. Brunner, J. Busto, F. Camarena, A. Capone, C. Cârloganu, G. Carminati, J. Carr, S. Cecchini, Z. Charif, Ph. Charvis, T. Chiarusi, M. Circella, L. Core, H. Costantini, P. Coyle, A. Creusot, C. Curtil, G. De Bonis, M. P. Decowski, I. Dekeyser, A. Deschamps, C. Distefano, C. Donzaud, D. Dornic, Q. Dorosti, D. Drouhin, T. Eberl, U. Emanuele, A. Enzenhöfer, J-P. Ernenwein, S. Escoffier, K. Fehn, P. Fermani, M. Ferri, S. Ferry, V. Flaminio, F. Folger, U. Fritsch, J-L. Fuda, S. Galatà, P. Gay, K. Geyer, G. Giacomelli, V. Giordano, J. P. Gómez-González, K. Graf, G. Guillard, G. Halladjian, G. Hallewell, H. van Haren, J. Hartman, A. J. Heijboer, Y. Hello, J. J. Hernández-Rey, B. Herold, J. Hößl, C. C. Hsu, M. de Jong, M. Kadler, O. Kalekin, A. Kappes, U. Katz, O. Kavatsyuk, P. Kooijman, C. Kopper, A. Kouchner, I. Kreykenbohm, V. Kulikovskiy, R. Lahmann, G. Lambard, G. Larosa, D. Lattuada, D. Lefèvre, G. Lim, D. Lo Presti, H. Loehner, S. Loucatos, F. Louis, S. Mangano, M. Marcelin, A. Margiotta, J. A. Martínez-Mora, A. Meli, T. Montaruli, N. Morganti, L. Moscoso, H. Motz, M. Neff, E. Nezri, D. Palioselitis, G. E. Păvălaş, K. Payet, P. Payre, J. Petrovic, P. Piattelli, N. Picot-Clemente, V. Popa, T. Pradier, E. Presani, C. Racca, C. Reed, G. Riccobene, C. Richardt, R. Richter, C. Rivière, A. Robert, K. Roensch, A. Rostovtsev, J. Ruiz-Rivas, M. Rujoiu, G. V. Russo, F. Salesa, D. F. E. Samtleben, P. Sapienza, F. Schöck, J-P. Schuller, F. Schüssler, T. Seitz, R. Shanidze, F. Simeone, A. Spies, M. Spurio, J. M. Steijger, Th. Stolarczyk, A. Sánchez-Losa, M. Taiuti, C. Tamburini, S. Toscano, B. Vallage, C. Vallée, V. Van Elewyck, G. Vannoni, M. Vecchi, P. Vernin, E. Visser, S. Wagner, G. Wijnker, J. Wilms, E. de Wolf, H. Yepes, D. Zaborov, J. D. Zornoza, J. Zúñiga
The ANTARES telescope is well-suited to detect neutrinos produced in
astrophysical transient sources as it can observe a full hemisphere of the sky
at all times with a high duty cycle. Radio-loud active galactic nuclei with
jets pointing almost directly towards the observer, the so-called blazars, are
particularly attractive potential neutrino point sources. The all-sky monitor
LAT on board the Fermi satellite probes the variability of any given gamma-ray
bright blazar in the sky on time scales of hours to months. Assuming hadronic
models, a strong correlation between the gamma-ray and the neutrino fluxes is
expected. Selecting a narrow time window on the assumed neutrino production
period can significantly reduce the background.
An unbinned method based on the minimization of a likelihood ratio was
applied to a subsample of data collected in 2008 (61 days live time). By
searching for neutrinos during the high state periods of the AGN light curve,
the sensitivity to these sources was improved by about a factor of two with
respect to a standard time-integrated point source search. First results on the
search for neutrinos associated with ten bright and variable Fermi sources are
presented.
View original:
http://arxiv.org/abs/1111.3473
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