All-sky Measurement of the Anisotropy of Cosmic Rays at 10 TeV and Mapping of the Local Interstellar Magnetic Field

被引：58

作者：

Abeysekara, A. U. ^{[1
]}

Alfaro, R. ^{[2
]}

Alvarez, C. ^{[3
]}

Arceo, R. ^{[3
]}

Arteaga-Velazquez, J. C. ^{[4
]}

Avila Rojas, D. ^{[2
]}

Belmont-Moreno, E. ^{[2
]}

BenZvi, S. Y. ^{[5
]}

Brisbois, C. ^{[6
]}

Capistran, T. ^{[7
]}

Carramiana, A. ^{[7
]}

Casanova, S. ^{[8
]}

Cotti, U. ^{[4
]}

Cotzomi, J. ^{[9
]}

Diaz-Velez, J. C. ^{[10
,11
,12
]}

De Leon, C. ^{[9
]}

De la Fuente, E. ^{[13
]}

Dichiara, S. ^{[14
]}

DuVernois, M. A. ^{[11
,12
]}

Espinoza, C. ^{[2
]}

Fiorino, D. W. ^{[15
]}

Fleischhack, H. ^{[6
]}

Fraija, N. ^{[14
]}

Galvan-Gamez, A. ^{[14
]}

Garcia-Gonzalez, J. A. ^{[2
]}

Gonzalez, M. M. ^{[14
]}

Goodman, J. A. ^{[15
]}

Hampel-Arias, Z. ^{[11
,12
,16
]}

Harding, J. P. ^{[17
]}

Hernandez, S. ^{[2
]}

Hona, B. ^{[6
]}

Hueyotl-Zahuantitla, F. ^{[3
]}

Iriarte, A. ^{[14
]}

Jardin-Blicq, A. ^{[18
]}

Joshi, V. ^{[18
]}

Lara, A. ^{[19
]}

Vargas, H. Leon ^{[2
]}

Luis-Raya, G. ^{[20
]}

Malone, K. ^{[21
]}

Marinelli, S. S. ^{[22
]}

Martinez-Castro, J. ^{[23
]}

Martinez, O. ^{[9
]}

Matthews, J. A. ^{[24
]}

Miranda-Romagnoli, P. ^{[25
]}

Moreno, E. ^{[9
]}

Mostafa, M. ^{[21
]}

Nellen, L. ^{[26
]}

Newbold, M. ^{[1
]}

Nisa, M. U. ^{[5
]}

Noriega-Papaqui, R. ^{[25
]}

机构：

[1] Univ Utah, Dept Phys & Astron, Salt Lake City, UT USA

[2] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City, DF, Mexico

[3] Univ Autonoma Chiapas, Tuxtla Gutierrez, Chiapas, Mexico

[4] Univ Michoacana, Morelia, Michoacan, Mexico

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

[6] Michigan Technol Univ, Dept Phys, Houghton, MI 49931 USA

[7] Inst Nacl Astrofis Opt & Electr, Puebla, Mexico

[8] Polish Acad Sci, Inst Nucl Phys, IFJ PAN, PL-31342 Krakow, Poland

[9] Benemerita Univ Autonoma Puebla, Fac Ciencias Fis Matemat, Puebla, Mexico

[10] Univ Guadalajara, Dept Fis, Ctr Univ Valles, Guadalajara, Mexico

[11] Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA

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

[13] Univ Guadalajara, Dept Fis, Ctr Univ Ciencias Exactase Ingn, Guadalajara, Mexico

[14] Univ Nacl Autonoma Mexico, Inst Astron, Mexico City, DF, Mexico

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

[16] Univ Libre Bruxelles, Interuniv Inst High Energies, Brussels, Belgium

[17] Los Alamos Natl Lab, Div Phys, Los Alamos, NM USA

[18] Max Planck Inst Nucl Phys, D-69117 Heidelberg, Germany

[19] Univ Nacl Autonoma Mexico, Inst Geofis, Mexico City, DF, Mexico

[20] Univ Politecn Pachuca, Pachuca, Hgo, Mexico

[21] Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA

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

[23] Inst Politecn Nacl, Ctr Invest Computac, Mexico City, DF, Mexico

[24] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA

[25] Univ Autonoma Estado Hidalgo, Pachuca, Mexico

[26] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City, DF, Mexico

[27] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA

[28] Georgia Inst Technol, Ctr Relativist Astrophys, Atlanta, GA 30332 USA

[29] IPN, Ctr Invest & Estudios Avanzados, Dept Phys, Mexico City, DF, Mexico

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

[31] DESY, D-15738 Zeuthen, Germany

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[46] Ohio State Univ, Dept Phys, 174 W 18th Ave, Columbus, OH 43210 USA

[47] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, 174 W 18th Ave, Columbus, OH 43210 USA

[48] Ohio State Univ, Dept Astron, 174 W 18Th Ave, Columbus, OH 43210 USA

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

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

来源：

ASTROPHYSICAL JOURNAL | 2019年 / 871卷 / 01期

基金：

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

关键词：

astroparticle physics; cosmic rays; ISM: magnetic fields; LARGE-SCALE ANISOTROPY; 3-DIMENSIONAL FEATURES; ARRIVAL DIRECTIONS; OUTER HELIOSPHERE; ENERGY-SPECTRUM; INTENSITY; ROTATION;

D O I：

10.3847/1538-4357/aaf5cc

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the first full-sky analysis of the cosmic ray arrival direction distribution with data collected by the High-Altitude Water Cherenkov and IceCube observatories in the northern and southern hemispheres at the same median primary particle energy of 10 TeV. The combined sky map and angular power spectrum largely eliminate biases that result from partial sky coverage and present a key to probe into the propagation properties of TeV cosmic rays through our local interstellar medium and the interaction between the interstellar and heliospheric magnetic fields. From the map, we determine the horizontal dipole components of the anisotropy delta(0h) = 9.16 x 10(-4) and delta(6h) = 7.25 x 10(-4) (+/- 0.04 x 10(-4)). In addition, we infer the direction (229 degrees.2 +/- 3 degrees.5 R.A., 11 degrees.4 +/- 3 degrees.0 decl.) of the interstellar magnetic field from the boundary between large-scale excess and deficit regions from which we estimate the missing corresponding vertical dipole component of the large-scale anisotropy to be delta(N) similar to -3.97(-2.0)(+1.0) x 10(-4).

引用

页数：15

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