Search for neutrino emission from gamma-ray flaring blazars with the ANTARES telescope

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. BrunnerJ. 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, Holger Martin Motz, M. Neff, E. Nezri, D. Palioselitis, G. E. Pavalaş, 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. 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

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)204-210
Number of pages7
JournalAstroparticle Physics
Volume36
Issue number1
DOIs
Publication statusPublished - 2012 Aug
Externally publishedYes

Fingerprint

blazars
neutrinos
gamma rays
telescopes
sky
point sources
likelihood ratio
hemispheres
active galactic nuclei
light curve
monitors
astrophysics
cycles
optimization
probes
sensitivity

Keywords

  • ANTARES
  • Blazars
  • Fermi LAT transient sources
  • Neutrino astronomy
  • Time-dependent search

ASJC Scopus subject areas

  • Astronomy and Astrophysics

Cite this

Adrián-Martínez, S., Al Samarai, I., Albert, A., André, M., Anghinolfi, M., Anton, G., ... Zúñiga, J. (2012). Search for neutrino emission from gamma-ray flaring blazars with the ANTARES telescope. Astroparticle Physics, 36(1), 204-210. https://doi.org/10.1016/j.astropartphys.2012.06.001

Search for neutrino emission from gamma-ray flaring blazars with the ANTARES telescope. / Adrián-Martínez, S.; Al Samarai, I.; Albert, A.; André, M.; Anghinolfi, M.; Anton, G.; Anvar, S.; Ardid, M.; Astraatmadja, T.; Aubert, J. J.; Baret, B.; Basa, S.; Bertin, V.; Biagi, S.; Bigongiari, C.; Bogazzi, C.; Bou-Cabo, M.; Bouhou, B.; Bouwhuis, M. C.; Brunner, J.; Busto, J.; Camarena, F.; Capone, A.; Cârloganu, C.; Carminati, G.; Carr, J.; Cecchini, S.; Charif, Z.; Charvis, Ph; Chiarusi, T.; Circella, M.; Core, L.; Costantini, H.; Coyle, P.; Creusot, A.; Curtil, C.; De Bonis, G.; Decowski, M. P.; Dekeyser, I.; Deschamps, A.; Distefano, C.; Donzaud, C.; Dornic, D.; Dorosti, Q.; Drouhin, D.; Eberl, T.; Emanuele, U.; Enzenhöfer, A.; Ernenwein, J. P.; Escoffier, S.; Fehn, K.; Fermani, P.; Ferri, M.; Ferry, S.; Flaminio, V.; Folger, F.; Fritsch, U.; Fuda, J. L.; Galatà, S.; Gay, P.; Geyer, K.; Giacomelli, G.; Giordano, V.; Gómez-González, J. P.; Graf, K.; Guillard, G.; Halladjian, G.; Hallewell, G.; Van Haren, H.; Hartman, J.; Heijboer, A. J.; Hello, Y.; Hernández-Rey, J. J.; Herold, B.; Hößl, J.; Hsu, C. C.; De Jong, M.; Kadler, M.; Kalekin, O.; Kappes, A.; Katz, U.; Kavatsyuk, O.; Kooijman, P.; Kopper, C.; Kouchner, A.; Kreykenbohm, I.; Kulikovskiy, V.; Lahmann, R.; Lambard, G.; Larosa, G.; Lattuada, D.; Lefèvre, D.; Lim, G.; Lo Presti, D.; Loehner, H.; Loucatos, S.; Louis, F.; Mangano, S.; Marcelin, M.; Margiotta, A.; Martínez-Mora, J. A.; Meli, A.; Montaruli, T.; Morganti, N.; Moscoso, L.; Motz, Holger Martin; Neff, M.; Nezri, E.; Palioselitis, D.; Pavalaş, G. E.; Payet, K.; Payre, P.; Petrovic, J.; Piattelli, P.; Picot-Clemente, N.; Popa, V.; Pradier, T.; Presani, E.; Racca, C.; Reed, C.; Riccobene, G.; Richardt, C.; Richter, R.; Rivière, C.; Robert, A.; Roensch, K.; Rostovtsev, A.; Ruiz-Rivas, J.; Rujoiu, M.; Russo, G. V.; Salesa, F.; Samtleben, D. F E; Sapienza, P.; Schöck, F.; Schuller, J. P.; Schüssler, F.; Seitz, T.; Shanidze, R.; Simeone, F.; Spies, A.; Spurio, M.; Steijger, J. J M; Stolarczyk, Th; Sánchez-Losa, A.; Taiuti, M.; Tamburini, C.; Toscano, S.; Vallage, B.; Vallée, C.; Van Elewyck, V.; Vannoni, G.; Vecchi, M.; Vernin, P.; Visser, E.; Wagner, S.; Wijnker, G.; Wilms, J.; De Wolf, E.; Yepes, H.; Zaborov, D.; Zornoza, J. D.; Zúñiga, J.

In: Astroparticle Physics, Vol. 36, No. 1, 08.2012, p. 204-210.

Research output: Contribution to journalArticle

Adrián-Martínez, S, Al Samarai, I, Albert, A, André, M, Anghinolfi, M, Anton, G, Anvar, S, Ardid, M, Astraatmadja, T, Aubert, JJ, Baret, B, Basa, S, Bertin, V, Biagi, S, Bigongiari, C, Bogazzi, C, Bou-Cabo, M, Bouhou, B, Bouwhuis, MC, Brunner, J, Busto, J, Camarena, F, Capone, A, Cârloganu, C, Carminati, G, Carr, J, Cecchini, S, Charif, Z, Charvis, P, Chiarusi, T, Circella, M, Core, L, Costantini, H, Coyle, P, Creusot, A, Curtil, C, De Bonis, G, Decowski, MP, Dekeyser, I, Deschamps, A, Distefano, C, Donzaud, C, Dornic, D, Dorosti, Q, Drouhin, D, Eberl, T, Emanuele, U, Enzenhöfer, A, Ernenwein, JP, Escoffier, S, Fehn, K, Fermani, P, Ferri, M, Ferry, S, Flaminio, V, Folger, F, Fritsch, U, Fuda, JL, Galatà, S, Gay, P, Geyer, K, Giacomelli, G, Giordano, V, Gómez-González, JP, Graf, K, Guillard, G, Halladjian, G, Hallewell, G, Van Haren, H, Hartman, J, Heijboer, AJ, Hello, Y, Hernández-Rey, JJ, Herold, B, Hößl, J, Hsu, CC, De Jong, M, Kadler, M, Kalekin, O, Kappes, A, Katz, U, Kavatsyuk, O, Kooijman, P, Kopper, C, Kouchner, A, Kreykenbohm, I, Kulikovskiy, V, Lahmann, R, Lambard, G, Larosa, G, Lattuada, D, Lefèvre, D, Lim, G, Lo Presti, D, Loehner, H, Loucatos, S, Louis, F, Mangano, S, Marcelin, M, Margiotta, A, Martínez-Mora, JA, Meli, A, Montaruli, T, Morganti, N, Moscoso, L, Motz, HM, Neff, M, Nezri, E, Palioselitis, D, Pavalaş, GE, Payet, K, Payre, P, Petrovic, J, Piattelli, P, Picot-Clemente, N, Popa, V, Pradier, T, Presani, E, Racca, C, Reed, C, Riccobene, G, Richardt, C, Richter, R, Rivière, C, Robert, A, Roensch, K, Rostovtsev, A, Ruiz-Rivas, J, Rujoiu, M, Russo, GV, Salesa, F, Samtleben, DFE, Sapienza, P, Schöck, F, Schuller, JP, Schüssler, F, Seitz, T, Shanidze, R, Simeone, F, Spies, A, Spurio, M, Steijger, JJM, Stolarczyk, T, Sánchez-Losa, A, Taiuti, M, Tamburini, C, Toscano, S, Vallage, B, Vallée, C, Van Elewyck, V, Vannoni, G, Vecchi, M, Vernin, P, Visser, E, Wagner, S, Wijnker, G, Wilms, J, De Wolf, E, Yepes, H, Zaborov, D, Zornoza, JD & Zúñiga, J 2012, 'Search for neutrino emission from gamma-ray flaring blazars with the ANTARES telescope', Astroparticle Physics, vol. 36, no. 1, pp. 204-210. https://doi.org/10.1016/j.astropartphys.2012.06.001
Adrián-Martínez S, Al Samarai I, Albert A, André M, Anghinolfi M, Anton G et al. Search for neutrino emission from gamma-ray flaring blazars with the ANTARES telescope. Astroparticle Physics. 2012 Aug;36(1):204-210. https://doi.org/10.1016/j.astropartphys.2012.06.001
Adrián-Martínez, S. ; Al Samarai, I. ; Albert, A. ; André, M. ; Anghinolfi, M. ; Anton, G. ; Anvar, S. ; Ardid, M. ; Astraatmadja, T. ; Aubert, J. J. ; Baret, B. ; Basa, S. ; Bertin, V. ; Biagi, S. ; Bigongiari, C. ; Bogazzi, C. ; Bou-Cabo, M. ; Bouhou, B. ; Bouwhuis, M. C. ; Brunner, J. ; Busto, J. ; Camarena, F. ; Capone, A. ; Cârloganu, C. ; Carminati, G. ; Carr, J. ; Cecchini, S. ; Charif, Z. ; Charvis, Ph ; Chiarusi, T. ; Circella, M. ; Core, L. ; Costantini, H. ; Coyle, P. ; Creusot, A. ; Curtil, C. ; De Bonis, G. ; Decowski, M. P. ; Dekeyser, I. ; Deschamps, A. ; Distefano, C. ; Donzaud, C. ; Dornic, D. ; Dorosti, Q. ; Drouhin, D. ; Eberl, T. ; Emanuele, U. ; Enzenhöfer, A. ; Ernenwein, J. P. ; Escoffier, S. ; Fehn, K. ; Fermani, P. ; Ferri, M. ; Ferry, S. ; Flaminio, V. ; Folger, F. ; Fritsch, U. ; Fuda, J. L. ; Galatà, S. ; Gay, P. ; Geyer, K. ; Giacomelli, G. ; Giordano, V. ; Gómez-González, J. P. ; Graf, K. ; Guillard, G. ; Halladjian, G. ; Hallewell, G. ; Van Haren, H. ; Hartman, J. ; Heijboer, A. J. ; Hello, Y. ; Hernández-Rey, J. J. ; Herold, B. ; Hößl, J. ; Hsu, C. C. ; De Jong, M. ; Kadler, M. ; Kalekin, O. ; Kappes, A. ; Katz, U. ; Kavatsyuk, O. ; Kooijman, P. ; Kopper, C. ; Kouchner, A. ; Kreykenbohm, I. ; Kulikovskiy, V. ; Lahmann, R. ; Lambard, G. ; Larosa, G. ; Lattuada, D. ; Lefèvre, D. ; Lim, G. ; Lo Presti, D. ; Loehner, H. ; Loucatos, S. ; Louis, F. ; Mangano, S. ; Marcelin, M. ; Margiotta, A. ; Martínez-Mora, J. A. ; Meli, A. ; Montaruli, T. ; Morganti, N. ; Moscoso, L. ; Motz, Holger Martin ; Neff, M. ; Nezri, E. ; Palioselitis, D. ; Pavalaş, G. E. ; Payet, K. ; Payre, P. ; Petrovic, J. ; Piattelli, P. ; Picot-Clemente, N. ; Popa, V. ; Pradier, T. ; Presani, E. ; Racca, C. ; Reed, C. ; Riccobene, G. ; Richardt, C. ; Richter, R. ; Rivière, C. ; Robert, A. ; Roensch, K. ; Rostovtsev, A. ; Ruiz-Rivas, J. ; Rujoiu, M. ; Russo, G. V. ; Salesa, F. ; Samtleben, D. F E ; Sapienza, P. ; Schöck, F. ; Schuller, J. P. ; Schüssler, F. ; Seitz, T. ; Shanidze, R. ; Simeone, F. ; Spies, A. ; Spurio, M. ; Steijger, J. J M ; Stolarczyk, Th ; Sánchez-Losa, A. ; Taiuti, M. ; Tamburini, C. ; Toscano, S. ; Vallage, B. ; Vallée, C. ; Van Elewyck, V. ; Vannoni, G. ; Vecchi, M. ; Vernin, P. ; Visser, E. ; Wagner, S. ; Wijnker, G. ; Wilms, J. ; De Wolf, E. ; Yepes, H. ; Zaborov, D. ; Zornoza, J. D. ; Zúñiga, J. / Search for neutrino emission from gamma-ray flaring blazars with the ANTARES telescope. In: Astroparticle Physics. 2012 ; Vol. 36, No. 1. pp. 204-210.
@article{533d3518772847338b086b545b93b29a,
title = "Search for neutrino emission from gamma-ray flaring blazars with the ANTARES telescope",
abstract = "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.",
keywords = "ANTARES, Blazars, Fermi LAT transient sources, Neutrino astronomy, Time-dependent search",
author = "S. Adri{\'a}n-Mart{\'i}nez and {Al Samarai}, I. and A. Albert and M. Andr{\'e} and M. Anghinolfi and G. Anton and S. Anvar and M. Ardid and T. Astraatmadja and Aubert, {J. J.} and B. Baret and S. Basa and V. Bertin and S. Biagi and C. Bigongiari and C. Bogazzi and M. Bou-Cabo and B. Bouhou and Bouwhuis, {M. C.} and J. Brunner and J. Busto and F. Camarena and A. Capone and C. C{\^a}rloganu and G. Carminati and J. Carr and S. Cecchini and Z. Charif and Ph Charvis and T. Chiarusi and M. Circella and L. Core and H. Costantini and P. Coyle and A. Creusot and C. Curtil and {De Bonis}, G. and Decowski, {M. P.} and I. Dekeyser and A. Deschamps and C. Distefano and C. Donzaud and D. Dornic and Q. Dorosti and D. Drouhin and T. Eberl and U. Emanuele and A. Enzenh{\"o}fer and Ernenwein, {J. P.} and S. Escoffier and K. Fehn and P. Fermani and M. Ferri and S. Ferry and V. Flaminio and F. Folger and U. Fritsch and Fuda, {J. L.} and S. Galat{\`a} and P. Gay and K. Geyer and G. Giacomelli and V. Giordano and G{\'o}mez-Gonz{\'a}lez, {J. P.} and K. Graf and G. Guillard and G. Halladjian and G. Hallewell and {Van Haren}, H. and J. Hartman and Heijboer, {A. J.} and Y. Hello and Hern{\'a}ndez-Rey, {J. J.} and B. Herold and J. H{\"o}{\ss}l and Hsu, {C. C.} and {De Jong}, M. and M. Kadler and O. Kalekin and A. Kappes and U. Katz and O. Kavatsyuk and P. Kooijman and C. Kopper and A. Kouchner and I. Kreykenbohm and V. Kulikovskiy and R. Lahmann and G. Lambard and G. Larosa and D. Lattuada and D. Lef{\`e}vre and G. Lim and {Lo Presti}, D. and H. Loehner and S. Loucatos and F. Louis and S. Mangano and M. Marcelin and A. Margiotta and Mart{\'i}nez-Mora, {J. A.} and A. Meli and T. Montaruli and N. Morganti and L. Moscoso and Motz, {Holger Martin} and M. Neff and E. Nezri and D. Palioselitis and Pavalaş, {G. E.} and K. Payet and P. Payre and J. Petrovic and P. Piattelli and N. Picot-Clemente and V. Popa and T. Pradier and E. Presani and C. Racca and C. Reed and G. Riccobene and C. Richardt and R. Richter and C. Rivi{\`e}re and A. Robert and K. Roensch and A. Rostovtsev and J. Ruiz-Rivas and M. Rujoiu and Russo, {G. V.} and F. Salesa and Samtleben, {D. F E} and P. Sapienza and F. Sch{\"o}ck and Schuller, {J. P.} and F. Sch{\"u}ssler and T. Seitz and R. Shanidze and F. Simeone and A. Spies and M. Spurio and Steijger, {J. J M} and Th Stolarczyk and A. S{\'a}nchez-Losa and M. Taiuti and C. Tamburini and S. Toscano and B. Vallage and C. Vall{\'e}e and {Van Elewyck}, V. and G. Vannoni and M. Vecchi and P. Vernin and E. Visser and S. Wagner and G. Wijnker and J. Wilms and {De Wolf}, E. and H. Yepes and D. Zaborov and Zornoza, {J. D.} and J. Z{\'u}{\~n}iga",
year = "2012",
month = "8",
doi = "10.1016/j.astropartphys.2012.06.001",
language = "English",
volume = "36",
pages = "204--210",
journal = "Astroparticle Physics",
issn = "0927-6505",
publisher = "Elsevier",
number = "1",

}

TY - JOUR

T1 - Search for neutrino emission from gamma-ray flaring blazars with the ANTARES telescope

AU - Adrián-Martínez, S.

AU - Al Samarai, I.

AU - Albert, A.

AU - André, M.

AU - Anghinolfi, M.

AU - Anton, G.

AU - Anvar, S.

AU - Ardid, M.

AU - Astraatmadja, T.

AU - Aubert, J. J.

AU - Baret, B.

AU - Basa, S.

AU - Bertin, V.

AU - Biagi, S.

AU - Bigongiari, C.

AU - Bogazzi, C.

AU - Bou-Cabo, M.

AU - Bouhou, B.

AU - Bouwhuis, M. C.

AU - Brunner, J.

AU - Busto, J.

AU - Camarena, F.

AU - Capone, A.

AU - Cârloganu, C.

AU - Carminati, G.

AU - Carr, J.

AU - Cecchini, S.

AU - Charif, Z.

AU - Charvis, Ph

AU - Chiarusi, T.

AU - Circella, M.

AU - Core, L.

AU - Costantini, H.

AU - Coyle, P.

AU - Creusot, A.

AU - Curtil, C.

AU - De Bonis, G.

AU - Decowski, M. P.

AU - Dekeyser, I.

AU - Deschamps, A.

AU - Distefano, C.

AU - Donzaud, C.

AU - Dornic, D.

AU - Dorosti, Q.

AU - Drouhin, D.

AU - Eberl, T.

AU - Emanuele, U.

AU - Enzenhöfer, A.

AU - Ernenwein, J. P.

AU - Escoffier, S.

AU - Fehn, K.

AU - Fermani, P.

AU - Ferri, M.

AU - Ferry, S.

AU - Flaminio, V.

AU - Folger, F.

AU - Fritsch, U.

AU - Fuda, J. L.

AU - Galatà, S.

AU - Gay, P.

AU - Geyer, K.

AU - Giacomelli, G.

AU - Giordano, V.

AU - Gómez-González, J. P.

AU - Graf, K.

AU - Guillard, G.

AU - Halladjian, G.

AU - Hallewell, G.

AU - Van Haren, H.

AU - Hartman, J.

AU - Heijboer, A. J.

AU - Hello, Y.

AU - Hernández-Rey, J. J.

AU - Herold, B.

AU - Hößl, J.

AU - Hsu, C. C.

AU - De Jong, M.

AU - Kadler, M.

AU - Kalekin, O.

AU - Kappes, A.

AU - Katz, U.

AU - Kavatsyuk, O.

AU - Kooijman, P.

AU - Kopper, C.

AU - Kouchner, A.

AU - Kreykenbohm, I.

AU - Kulikovskiy, V.

AU - Lahmann, R.

AU - Lambard, G.

AU - Larosa, G.

AU - Lattuada, D.

AU - Lefèvre, D.

AU - Lim, G.

AU - Lo Presti, D.

AU - Loehner, H.

AU - Loucatos, S.

AU - Louis, F.

AU - Mangano, S.

AU - Marcelin, M.

AU - Margiotta, A.

AU - Martínez-Mora, J. A.

AU - Meli, A.

AU - Montaruli, T.

AU - Morganti, N.

AU - Moscoso, L.

AU - Motz, Holger Martin

AU - Neff, M.

AU - Nezri, E.

AU - Palioselitis, D.

AU - Pavalaş, G. E.

AU - Payet, K.

AU - Payre, P.

AU - Petrovic, J.

AU - Piattelli, P.

AU - Picot-Clemente, N.

AU - Popa, V.

AU - Pradier, T.

AU - Presani, E.

AU - Racca, C.

AU - Reed, C.

AU - Riccobene, G.

AU - Richardt, C.

AU - Richter, R.

AU - Rivière, C.

AU - Robert, A.

AU - Roensch, K.

AU - Rostovtsev, A.

AU - Ruiz-Rivas, J.

AU - Rujoiu, M.

AU - Russo, G. V.

AU - Salesa, F.

AU - Samtleben, D. F E

AU - Sapienza, P.

AU - Schöck, F.

AU - Schuller, J. P.

AU - Schüssler, F.

AU - Seitz, T.

AU - Shanidze, R.

AU - Simeone, F.

AU - Spies, A.

AU - Spurio, M.

AU - Steijger, J. J M

AU - Stolarczyk, Th

AU - Sánchez-Losa, A.

AU - Taiuti, M.

AU - Tamburini, C.

AU - Toscano, S.

AU - Vallage, B.

AU - Vallée, C.

AU - Van Elewyck, V.

AU - Vannoni, G.

AU - Vecchi, M.

AU - Vernin, P.

AU - Visser, E.

AU - Wagner, S.

AU - Wijnker, G.

AU - Wilms, J.

AU - De Wolf, E.

AU - Yepes, H.

AU - Zaborov, D.

AU - Zornoza, J. D.

AU - Zúñiga, J.

PY - 2012/8

Y1 - 2012/8

N2 - 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.

AB - 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.

KW - ANTARES

KW - Blazars

KW - Fermi LAT transient sources

KW - Neutrino astronomy

KW - Time-dependent search

UR - http://www.scopus.com/inward/record.url?scp=84863096407&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863096407&partnerID=8YFLogxK

U2 - 10.1016/j.astropartphys.2012.06.001

DO - 10.1016/j.astropartphys.2012.06.001

M3 - Article

AN - SCOPUS:84863096407

VL - 36

SP - 204

EP - 210

JO - Astroparticle Physics

JF - Astroparticle Physics

SN - 0927-6505

IS - 1

ER -