Search for extraterrestrial point sources of neutrinos with AMANDA-II -: art. no. 071102

被引:67
作者
Ahrens, J
Bai, X
Barwick, SW
Becka, T
Becker, JK
Bernardini, E
Bertrand, D
Binon, F
Biron, A
Boersma, DJ
Böser, S
Botner, O
Bouchta, A
Bouhali, O
Burgess, T
Carius, S
Castermans, T
Chen, A
Chirkin, D
Collin, B
Conrad, J
Cooley, J
Cowen, DF
Davour, A
De Clercq, C
DeYoung, T
Desiati, P
Dewulf, JP
Ekström, P
Feser, T
Gaisser, TK
Ganugapati, R
Gaug, M
Geenen, H
Gerhardt, L
Goldschmidt, A
Gross, A
Hallgren, A
Halzen, F
Hanson, K
Hardtke, R
Harenberg, T
Hauschildt, T
Helbing, K
Hellwig, M
Herquet, P
Hill, GC
Hubert, D
Hughey, B
Hulth, PO
机构
[1] Univ Mainz, Inst Phys, D-55099 Mainz, Germany
[2] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA
[3] BU Wuppertal, Fachbereich Phys 8, D-42097 Wuppertal, Germany
[4] Free Univ Brussels, Sci Fac CP230, B-1050 Brussels, Belgium
[5] DESY Zeuthen, D-15735 Zeuthen, Germany
[6] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BW, England
[7] Kalmar Univ, Dept Technol, S-39182 Kalmar, Sweden
[8] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
[9] Penn State Univ, Dept Phys, University Pk, PA 16802 USA
[10] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[11] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
[12] Univ Maryland, Dept Phys, College Pk, MD 20742 USA
[13] Univ Mons Hainaut, B-7000 Mons, Belgium
[14] Univ Simon Bolivar, Dept Fis, Caracas 1080, Venezuela
[15] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA
[16] Univ Wisconsin, Dept Phys, River Falls, WI 54022 USA
[17] Uppsala Univ, Div High Energy Phys, S-75121 Uppsala, Sweden
[18] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden
[19] Free Univ Brussels, Dienst ELEM, B-1050 Brussels, Belgium
关键词
D O I
10.1103/PhysRevLett.92.071102
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present the results of a search for point sources of high-energy neutrinos in the northern hemisphere using AMANDA-II data collected in the year 2000. Included are flux limits on several active-galactic-nuclei blazars, microquasars, magnetars, and other candidate neutrino sources. A search for excesses above a random background of cosmic-ray-induced atmospheric neutrinos and misreconstructed downgoing cosmic-ray muons reveals no statistically significant neutrino point sources. We show that AMANDA-II has achieved the sensitivity required to probe known TeV gamma-ray sources such as the blazar Markarian 501 in its 1997 flaring state at a level where neutrino and gamma-ray fluxes are equal.
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