Constraints on Galactic Neutrino Emission with Seven Years of IceCube Data

被引：107

作者：

Aartsen, M. G. ^{[1
]}

Ackermann, M. ^{[2
]}

Adams, J. ^{[3
]}

Aguilar, J. A. ^{[4
]}

Ahlers, M. ^{[5
]}

Ahrens, M. ^{[6
,7
]}

Al Samarai, I. ^{[8
]}

Altmann, D. ^{[9
]}

Andeen, K. ^{[10
]}

Anderson, T. ^{[11
]}

Ansseau, I. ^{[4
]}

Anton, G. ^{[9
]}

Arguelles, C. ^{[12
]}

Auffenberg, J. ^{[13
]}

Axani, S. ^{[12
]}

Bagherpour, H. ^{[3
]}

Bai, X. ^{[14
]}

Barron, J. P. ^{[15
]}

Barwick, S. W. ^{[16
]}

Baum, V. ^{[17
]}

Bay, R. ^{[18
]}

Beatty, J. J. ^{[19
,20
,21
]}

Tjus, J. Becker ^{[22
]}

Becker, K. -H. ^{[23
]}

BenZvi, S. ^{[24
]}

Berley, D. ^{[25
]}

Bernardini, E. ^{[2
]}

Besson, D. Z. ^{[26
]}

Binder, G. ^{[18
,27
]}

Bindig, D. ^{[23
]}

Blaufuss, E. ^{[25
]}

Blot, S. ^{[2
]}

Bohm, C. ^{[6
,7
]}

Borner, M. ^{[28
]}

Bos, F. ^{[22
]}

Bose, D. ^{[29
]}

Boeser, S. ^{[17
]}

Botner, O. ^{[30
]}

Bourbeau, J. ^{[31
,32
]}

Bradascio, F. ^{[2
]}

Braun, J. ^{[31
,32
]}

Brayeur, L. ^{[33
]}

Brenzke, M. ^{[13
]}

Bretz, H. -P. ^{[2
]}

Bron, S. ^{[8
]}

Burgman, A. ^{[30
]}

Carver, T. ^{[8
]}

Casey, J. ^{[31
,32
]}

Casier, M. ^{[33
]}

Cheung, E. ^{[25
]}

机构：

[1] Univ Adelaide, Dept Phys, Adelaide, SA 5005, Australia

[2] DESY, D-15735 Zeuthen, Germany

[3] Univ Canterbury, Dept Phys & Astron, Private Bag 4800, Christchurch, New Zealand

[4] Univ Libre Bruxelles, Sci Fac, CP230, B-1050 Brussels, Belgium

[5] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark

[6] Stockholm Univ, Oskar Klein Ctr, SE-10691 Stockholm, Sweden

[7] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden

[8] Univ Geneva, Dept Phys Nucl & Corpusculaire, CH-1211 Geneva, Switzerland

[9] Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, D-91058 Erlangen, Germany

[10] Marquette Univ, Dept Phys, Milwaukee, WI 53201 USA

[11] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[12] MIT, Dept Phys, Cambridge, MA 02139 USA

[13] Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany

[14] South Dakota Sch Mines & Technol, Dept Phys, Rapid City, SD 57701 USA

[15] Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada

[16] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[17] Johannes Gutenberg Univ Mainz, Inst Phys, Staudinger Weg 7, D-55099 Mainz, Germany

[18] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[19] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[20] Ohio State Univ, Ctr Cosmol & Astro Particle Phys, Columbus, OH 43210 USA

[21] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA

[22] Ruhr Univ Bochum, Fak Phys & Astron, D-44780 Bochum, Germany

[23] Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany

[24] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA

[25] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[26] Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA

[27] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[28] TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany

[29] Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea

[30] Uppsala Univ, Dept Phys & Astron, Box 516, SE-75120 Uppsala, Sweden

[31] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[32] Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA

[33] VUB, Dienst ELEM, B-1050 Brussels, Belgium

[34] SNOLAB, 1039 Reg Rd 24,Creighton Mine 9, Lively, ON P3Y 1N2, Canada

[35] Westfalische Wilhelms Univ Miinster, Inst Kernphys, D-48149 Munster, Germany

[36] Tech Univ Munich, Phys Dept, D-85748 Garching, Germany

[37] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA

[38] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[39] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA

[40] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA

[41] Univ Ghent, Dept Phys & Astron, B-9000 Ghent, Belgium

[42] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany

[43] Southern Univ, Dept Phys, Baton Rouge, LA 70813 USA

[44] Univ Wisconsin, Dept Astron, Madison, WI 53706 USA

[45] Univ Tokyo, Earthquake Res Inst, Bunkyo, Tokyo 1130032, Japan

[46] Chiba Univ, Dept Phys, Chiba 2638522, Japan

[47] Chiba Univ, Inst Global Prominent Res, Chiba 2638522, Japan

[48] Clark Atlanta Univ, CTSPS, Atlanta, GA 30314 USA

[49] Univ Texas Arlington, Dept Phys, 502 Yates St,Sci Hall Rm 108,Box 19059, Arlington, TX 76019 USA

[50] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

来源：

ASTROPHYSICAL JOURNAL | 2017年 / 849卷 / 01期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会; 澳大利亚研究理事会; 新加坡国家研究基金会; 瑞典研究理事会; 瑞士国家科学基金会;

关键词：

gamma rays: ISM; GAMMA-RAY; DETECTOR; SEARCH;

D O I：

10.3847/1538-4357/aa8dfb

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The origins of high-energy astrophysical neutrinos remain a mystery despite extensive searches for their sources. We present constraints from seven years of IceCube Neutrino Observatory muon data on the neutrino flux coming from the Galactic plane. This flux is expected from cosmic-ray interactions with the interstellar medium or near localized sources. Two methods were developed to test for a spatially extended flux from the entire plane, both of which are maximum likelihood fits but with different signal and background modeling techniques. We consider three templates for Galactic neutrino emission based primarily on gamma-ray observations and models that cover a wide range of possibilities. Based on these templates and in the benchmark case of an unbroken E-2.5 power-law energy spectrum, we set 90% confidence level upper limits, constraining the possible Galactic contribution to the diffuse neutrino flux to be relatively small, less than 14% of the flux reported in Aartsen et al. above 1 TeV. A stacking method is also used to test catalogs of known high-energy Galactic gamma-ray sources.

引用

页数：11

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