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

6533b828fe1ef96bd12884b3

RESEARCH PRODUCT

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

S. Adrian Martinez I. Al Samarai A. Albert M. Andre 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 Antonio Capone C. Carloganu G. Carminati J. Carr S. Cecchini Z. Charif Ph Charvis T. Chiarusi M. Circella L. Core H. Costantini P. Coyle A. Creusot C. Curtil Giulia De Bonis M. P. Decowski I. Dekeyser A. Deschamps C. Distefano C. Donzaud D. Dornic Q. Dorosti D. Drouhin T. Eberl U. Emanuele A. Enzenhofer J. P. Ernenwein S. Escoffier K. Fehn Paolo Fermani M. Ferri S. Ferry V. Flaminio F. Folger U. Fritsch J. L. Fuda S. Galata P. Gay K. Geyer G. Giacomelli V. Giordano J. P. Gomez Gonzalez K. Graf K. Graft G. Guillard G. Halladjian G. Hallewell H. Van Haren J. Hartman A. J. Heijboer Y. Hello J. J. Hernandez Rey B. Herold J. Hossl J. Hoessl 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. Lefevre G. Lim D. Lo Presti H. Loehner S. Loucatos F. Louis S. Mangano M. Marcelin A. Margiotta J. A. Martinez Mora A. Meli T. Montaruli N. Morganti L. Moscoso H. Motz M. Neff E. Nezri D. Palioselitis G. E. Pavalas 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. Riviere A. Robert K. Roensch A. Rostovtsev J. Ruiz Rivas M. Rujoiu G. V. Russo F. Salesa D. F. E. Samtleben P. Sapienza F. Schock J. P. Schuller F. Schussler T. Seitz R. Shanidze Francesco Simeone A. Spies M. Spurio J. J. M. Steijger Th Stolarczyk A. Sanchez Losa M. Taiuti C. Tamburini S. Toscano B. Vallage C. Vallee V. Van Elewyck G. Vannoni M. Vecchi P. Vernin E. Visser S. Wagner G. Wijnker J. Wilmsa J. Wilms E. De Wolf H. Yepes D. Zaborov J. D. Zornoza J. Zuniga

subject

ASTROPHYSICS Astrofísica Astrophysics Neutrino Astronomy 01 natural sciences 7. Clean energy LARGE-AREA TELESCOPE law.invention law WATER Instrumentation 010303 astronomy & astrophysics Physics High Energy Astrophysical Phenomena (astro-ph.HE)[SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]Time-dependent search CATALOG LIGHT Neutrino astronomy Física nuclear Neutrino Astrophysics - High Energy Astrophysical Phenomena ACTIVE GALACTIC NUCLEI Nuclear and High Energy Physics [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]Active galactic nucleus [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]Point source Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences Astrophysics::Cosmology and Extragalactic Astrophysics fermi lat transient sources; neutrino astronomy; time-dependent search; antares; blazars Telescope MUONS 0103 physical sciences ANTARES; Neutrino Astronomy; Fermi LAT transient sources Blazar ANTARES 010308 nuclear & particles physics Astronomy Astronomy and Astrophysics Fermi LAT transient sources Light curve Neutrino astrophysics [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]MODEL 13. Climate action FISICA APLICADA :Física::Astronomia i astrofísica [Àrees temàtiques de la UPC]Neutrino astronomy [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]Blazars Fermi Gamma-ray Space Telescope

description

The ANTARES telescope observes a full hemisphere of the sky all the time with a duty cycle close to 100%. This makes it well suited for an extensive observation of neutrinos produced in astrophysical transient sources. In the surrounding medium of blazars, i.e. active galactic nuclei with their jets pointing almost directly towards the observer, neutrinos may be produced together with gamma-rays by hadronic interactions, so a strong correlation between neutrinos and gamma-rays emissions is expected. The time variability information of the studied source can be obtained by the gamma-ray light curves measured by the LAT instrument on-board the Fermi satellite. If the expected neutrino flux observation is reduced to a narrow window around the assumed neutrino production period, the point-source sensitivity can be drastically improved. The ANTARES data collected in 2008 has been analysed looking for neutrinos detected in the high state period of ten bright and variable Fermi sources assuming that the neutrino emission follows the gamma-ray light curves. First results show a sensitivity improvement by a factor 2-3 with respect to a standard time-integrated point source search. The analysis has been done with an unbinned method based on the minimization of a likelihood ratio applied to data corresponding to a live time of 60 days. The width of the flaring periods ranges from 1 to 20 days. Despite the fact that the most significant studied source is compatible with background fluctuations, recently detected flares promise interesting future analyse.

year	journal	country	edition	language
2012-08-01

10.1016/j.astropartphys.2012.06.001 http://hdl.handle.net/20.500.11769/51455