SEARCH FOR TIME-INDEPENDENT NEUTRINO EMISSION FROM ASTROPHYSICAL SOURCES WITH 3 yr OF IceCube DATA

被引:75
作者
Aartsen, M. G. [1 ]
Abbasi, R. [2 ,3 ]
Abdou, Y. [4 ]
Ackermann, M. [5 ]
Adams, J. [6 ]
Aguilar, J. A. [7 ]
Ahlers, M. [2 ,3 ]
Altmann, D. [8 ]
Auffenberg, J. [2 ,3 ]
Bai, X. [9 ,10 ,48 ]
Baker, M. [2 ,3 ]
Barwick, S. W. [11 ]
Baum, V. [12 ]
Bay, R. [13 ]
Beatty, J. J. [14 ,15 ,16 ]
Bechet, S. [17 ]
Tjus, J. Becker [18 ]
Becker, K. -H. [19 ]
Benabderrahmane, M. L. [5 ]
BenZvi, S. [2 ,3 ]
Berghaus, P. [5 ]
Berley, D. [20 ]
Bernardini, E. [5 ]
Bernhard, A. [21 ]
Besson, D. Z. [22 ]
Binder, G. [13 ,23 ]
Bindig, D. [19 ]
Bissok, M. [24 ]
Blaufuss, E. [20 ]
Blumenthal, J. [24 ]
Boersma, D. J. [25 ]
Bohaichuk, S. [26 ]
Bohm, C. [27 ,28 ]
Bose, D. [29 ]
Boeser, S. [30 ]
Botner, O. [25 ]
Brayeur, L. [29 ]
Bretz, H. -P. [5 ]
Brown, A. M. [6 ]
Bruijn, R. [31 ]
Brunner, J. [5 ]
Carson, M. [4 ]
Casey, J. [32 ,33 ]
Casier, M. [29 ]
Chirkin, D. [2 ,3 ]
Christov, A. [7 ]
Christy, B. [20 ]
Clark, K. [34 ]
Clevermann, F. [35 ]
Coenders, S. [24 ]
机构
[1] Univ Adelaide, Sch Chem & Phys, Adelaide, SA 5005, Australia
[2] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA
[3] Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA
[4] Univ Ghent, Dept Phys & Astron, B-9000 Ghent, Belgium
[5] DESY, D-15735 Zeuthen, Germany
[6] Univ Canterbury, Dept Phys & Astron, Christchurch 1, New Zealand
[7] Univ Geneva, Dept Phys Nucl & Corpusculaire, CH-1211 Geneva, Switzerland
[8] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany
[9] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA
[10] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA
[11] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
[12] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany
[13] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[14] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA
[15] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA
[16] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA
[17] Univ Libre Bruxelles, Sci Fac CP230, B-1050 Brussels, Belgium
[18] Ruhr Univ Bochum, Fac Phys & Astron, D-44780 Bochum, Germany
[19] Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany
[20] Univ Maryland, Dept Phys, College Pk, MD 20742 USA
[21] Tech Univ Munich, D-85748 Garching, Germany
[22] Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA
[23] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
[24] Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany
[25] Uppsala Univ, Dept Phys & Astron, SE-75120 Uppsala, Sweden
[26] Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada
[27] Stockholm Univ, Oskar Klein Ctr, SE-10691 Stockholm, Sweden
[28] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden
[29] Vrije Univ Brussel, Dienst ELEM, B-1050 Brussels, Belgium
[30] Univ Bonn, Inst Phys, D-53115 Bonn, Germany
[31] Ecole Polytech Fed Lausanne, High Energy Phys Lab, CH-1015 Lausanne, Switzerland
[32] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA
[33] Georgia Inst Technol, Ctr Relativist Astrophys, Atlanta, GA 30332 USA
[34] Penn State Univ, Dept Phys, University Pk, PA 16802 USA
[35] TU Dortmund Univ, Dept Phys, Dortmund, Germany
[36] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA
[37] Southern Univ, Dept Phys, Baton Rouge, LA 70813 USA
[38] Univ Wisconsin, Dept Astron, Madison, WI 53706 USA
[39] Chiba Univ, Dept Phys, Chiba 2638522, Japan
[40] Clark Atlanta Univ, CTSPS, Atlanta, GA 30314 USA
[41] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA
[42] Univ Mons, B-7000 Mons, Belgium
[43] Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA
[44] Univ Wisconsin, Dept Phys, River Falls, WI 54022 USA
[45] Univ Alaska Anchorage, Dept Phys & Astron, Anchorage, AK 99508 USA
[46] Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea
[47] Univ Oxford, Dept Phys, Oxford OX1 3NP, England
[48] South Dakota Sch Mines & Technol, Dept Phys, Rapid City, SD 57701 USA
[49] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[50] Sezione Ist Nazl Fis Nucl, Dipartimento Fis, I-70126 Bari, Italy
基金
美国国家科学基金会; 瑞典研究理事会; 澳大利亚研究理事会; 加拿大自然科学与工程研究理事会; 新加坡国家研究基金会; 瑞士国家科学基金会;
关键词
astroparticle physics; cosmic rays; neutrinos; telescopes; GAMMA-RAY EMISSION; HIGH-ENERGY NEUTRINOS; FERMI-LAT DISCOVERY; COSMIC-RAYS; CRAB-NEBULA; GALACTIC SOURCES; CYGNUS REGION; IC; 443; GALAXIES; ACCELERATION;
D O I
10.1088/0004-637X/779/2/132
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present the results of a search for neutrino point sources using the IceCube data collected between 2008 April and 2011 May with three partially completed configurations of the detector: the 40-, 59-, and 79-string configurations. The live-time of this data set is 1040 days. An unbinned maximum likelihood ratio test was used to search for an excess of neutrinos above the atmospheric background at any given direction in the sky. By adding two more years of data with improved event selection and reconstruction techniques, the sensitivity was improved by a factor of 3.5 or more with respect to the previously published results obtained with the 40-string configuration of IceCube. We performed an all-sky survey and a dedicated search using a catalog of a priori selected objects observed by other telescopes. In both searches, the data are compatible with the background-only hypothesis. In the absence of evidence for a signal, we set upper limits on the flux of muon neutrinos. For an E-2 neutrino spectrum, the observed limits are (0.9-5) x 10(-12) TeV-1 cm(-2) s(-1) for energies between 1 TeV and 1 PeV in the northern sky and (0.9-23.2) x 10(-12) TeV-1 cm(-2) s(-1) for energies between 10(2) TeV and 10(2) PeV in the southern sky. We also report upper limits for neutrino emission from groups of sources that were selected according to theoretical models or observational parameters and analyzed with a stacking approach. Some of the limits presented already reach the level necessary to quantitatively test current models of neutrino emission.
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页数:17
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