SEARCHES FOR POINT-LIKE AND EXTENDED NEUTRINO SOURCES CLOSE TO THE GALACTIC CENTER USING THE ANTARES NEUTRINO TELESCOPE

被引：81

作者：

Adrian-Martinez, S. ^{[1
]}

Albert, A. ^{[2
]}

Andre, M. ^{[3
]}

Anghinolfi, M. ^{[4
]}

Anton, G. ^{[5
]}

Ardid, M. ^{[1
]}

Aubert, J-J. ^{[6
]}

Baret, B. ^{[7
]}

Barrios-Marti, J. ^{[8
]}

Basa, S. ^{[9
]}

Bertin, V. ^{[6
]}

Biagi, S. ^{[10
,11
]}

Bogazzi, C. ^{[12
]}

Bormuth, R. ^{[12
,13
]}

Bou-Cabo, M. ^{[1
]}

Bouwhuis, M. C. ^{[12
]}

Bruijn, R. ^{[12
]}

Brunner, J. ^{[6
]}

Busto, J. ^{[6
]}

Capone, A. ^{[14
,15
]}

Caramete, L. ^{[16
]}

Carloganu, C. ^{[17
]}

Carr, J. ^{[6
]}

Chiarusi, T. ^{[10
]}

Circella, M. ^{[18
]}

Core, L. ^{[6
]}

Costantini, H. ^{[6
]}

Coyle, P. ^{[6
]}

Creusot, A. ^{[7
]}

Curtil, C. ^{[6
]}

De Rosa, G. ^{[19
,20
]}

Dekeyser, I. ^{[21
,22
]}

Deschamps, A. ^{[23
]}

De Bonis, G. ^{[14
,15
]}

Distefano, C. ^{[24
]}

Donzaud, C. ^{[7
,25
]}

Dornic, D. ^{[6
]}

Dorosti, Q. ^{[26
]}

Drouhin, D. ^{[2
]}

Dumas, A. ^{[17
]}

Eberl, T. ^{[5
]}

Elsaesser, D. ^{[27
]}

Enzenhoefer, A. ^{[5
]}

Escoffier, S. ^{[6
]}

Fehn, K. ^{[5
]}

Felis, I. ^{[1
]}

Fermani, P. ^{[14
,15
]}

Folger, F. ^{[5
]}

Fusco, L. A. ^{[10
,11
]}

Galata, S. ^{[7
]}

机构：

[1] Univ Politecn Valencia, Inst Invest Gesti Integrada Zones Costanere IGIC, E-46730 Gandia, Spain

[2] GRPHE Inst Univ Technol Colmar, F-68008 Colmar, France

[3] Tech Univ Catalonia, Lab Appl Bioacoust, E-08800 Barcelona, Spain

[4] INFN, Sez Genova, I-16146 Genoa, Italy

[5] Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, D-91058 Erlangen, Germany

[6] Aix Marseille Univ, CPPM, CNRS, IN2P3, Marseille, France

[7] Univ Paris Diderot, APC, CNRS, IN2P3,CEA,IRFU,Observ Paris, F-75205 Paris, France

[8] Univ Valencia, CSIC, IFIC, E-46071 Valencia, Spain

[9] LAM, F-13388 Marseille 13, France

[10] Ist Nazl Fis Nucl, Sez Bologna, I-40127 Bologna, Italy

[11] Univ Bologna, Dipartimento Fis, I-40127 Bologna, Italy

[12] Nikhef, Amsterdam, Netherlands

[13] Leiden Univ, Huygens Kamerlingh Onnes Lab, NL-2300 RA Leiden, Netherlands

[14] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy

[15] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[16] Inst Space Sci, R-77125 Bucharest, Magurele, Romania

[17] Univ Blaise Pascal, Clermont Univ, Phys Corpusculaire Lab, F-63000 Clermont Ferrand, France

[18] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy

[19] INFN, Sez Napoli, I-80126 Naples, Italy

[20] Univ Naples Federico II, Dipartimento Fis, I-80126 Naples, Italy

[21] Aix Marseille Univ, CNRS, INSU, IRD,MIO, Marseille, France

[22] Univ Toulon & Var, CNRS, INSU, IRD,MIO, La Garde, France

[23] Univ Nice Sophia Antipolis, Geoazur, CNRS, INSU,IRD,Observ Cote Azur, Sophia Antipolis, France

[24] Ist Nazl Fis Nucl, LNS, I-95123 Catania, Italy

[25] Univ Paris Sud, F-91405 Orsay, France

[26] Univ Groningen, KVI, NL-9747 AA Groningen, Netherlands

[27] Univ Wurzburg, Inst Theoret Phys & Astrophys, D-97074 Wurzburg, Germany

[28] Ist Nazl Fis Nucl, Sez Catania, I-95125 Catania, Italy

[29] Royal Netherlands Inst Sea Res NIOZ, NL-1797 SZ T Horntje, Texel, Netherlands

[30] Univ Utrecht, Fac Betawetenschappen, NL-3584 CC Utrecht, Netherlands

[31] Univ Amsterdam, Inst Hoge Energie Fys, NL-1098 XG Amsterdam, Netherlands

[32] Dr Remeis Sternwarte, D-96049 Bamberg, Germany

[33] Univ Erlangen Nurnberg, D-96049 Bamberg, Germany

[34] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow 119991, Russia

[35] Univ Catania, Dipartimento Fis & Astron, I-95125 Catania, Italy

[36] CEA Saclay, Direct Sci Mat, Inst Rech Lois Fondament Univers, Serv Phys Particules, F-91191 Gif Sur Yvette, France

[37] Univ Strasbourg, IPHC, F-67037 Strasbourg 2, France

[38] CNRS, IN2P3, F-67037 Strasbourg 2, France

[39] Inst Theoret & Expt Phys, Moscow 117218, Russia

[40] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy

[41] Univ Mohammed, Lab Phys Matter & Radiat, Oujda 6000, Morocco

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2014年 / 786卷 / 01期

关键词：

astroparticle physics; Galaxy: center; neutrinos; ATMOSPHERIC MUONS; ENERGY; FLUX;

D O I：

10.1088/2041-8205/786/1/L5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A search for cosmic neutrino sources using six years of data collected by the ANTARES neutrino telescope has been performed. Clusters of muon neutrinos over the expected atmospheric background have been looked for. No clear signal has been found. The most signal-like accumulation of events is located at equatorial coordinates R.A. = -46 degrees.8 and decl. = -64 degrees.9 and corresponds to a 2.2 sigma background fluctuation. In addition, upper limits on the flux normalization of an E-2 muon neutrino energy spectrum have been set for 50 pre-selected astrophysical objects. Finally, motivated by an accumulation of seven events relatively close to the Galactic Center in the recently reported neutrino sample of the IceCube telescope, a search for point sources in a broad region around this accumulation has been carried out. No indication of a neutrino signal has been found in the ANTARES data and upper limits on the flux normalization of an E-2 energy spectrum of neutrinos from point sources in that region have been set. The 90% confidence level upper limits on the muon neutrino flux normalization vary between 3.5 and 5.1 x 10(-8) GeV cm(-2) s(-1), depending on the exact location of the source.

引用

页数：5

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