Observation of a large-scale anisotropy in the arrival directions of cosmic rays above 8 x 10(18) eV

doi:10.1126/science.aan4338

GSTDTAP > 地球科学

DOI	10.1126/science.aan4338
	Observation of a large-scale anisotropy in the arrival directions of cosmic rays above 8 x 10(18) eV
	Aab, A.1; 39;Amico, S.2; 39;Olivo, J. C.3
	2017-09-22
发表期刊	SCIENCE
ISSN	0036-8075
EISSN	1095-9203
出版年	2017
卷号	357 期号:6357 页码:1266-1270
文章类型	Article
语种	英语
国家	Netherlands; Portugal; Italy; France; Brazil; Argentina; Mexico; Spain; USA; Romania; Colombia; Germany; Australia; Czech Republic; Poland; Slovenia; Belgium; England
英文摘要	Cosmic rays are atomic nuclei arriving from outer space that reach the highest energies observed in nature. Clues to their origin come from studying the distribution of their arrival directions. Using 3 x 10(4) cosmic rays with energies above 8 x 10(18) electron volts, recorded with the Pierre Auger Observatory from a total exposure of 76,800 km(2) sr year, we determined the existence of anisotropy in arrival directions. The anisotropy, detected at more than a 5.2s level of significance, can be described by a dipole with an amplitude of 6:5(-0.9)(+1.3) percent toward right ascension alpha(d) = 100 +/- 10 degrees and declination delta(d) = -24(-13)(+12) degrees. That direction indicates an extragalactic origin for these ultrahighenergy particles.
领域	地球科学 ; 气候变化 ; 资源环境
收录类别	SCI-E
WOS记录号	WOS:000411337700039
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
URL	查看原文
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/196922
专题	地球科学资源环境科学气候变化
作者单位	1.Radboud Univ Nijmegen, IMAPP, Nijmegen, Netherlands; 2.Univ Lisbon, Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal; 3.Univ Lisbon, Inst Super Tecn, Lisbon, Portugal; 4.Osservatorio Astrofis Torino INAF, Turin, Italy; 5.Ist Nazl Fis Nucl, Sez Torino, Turin, Italy; 6.Univ Paris 06, Lab Phys Nucl & Hautes Energies, Paris, France; 7.Univ Paris 07, CNRS, IN2P3, Paris, France; 8.Univ Sao Paulo, Inst Fis, Sao Paulo, Brazil; 9.Ctr Atom Bariloche, San Carlos De Bariloche, Rio Negro, Argentina; 10.Consejo Nacl Invest Cient & Tecn, UNCuyo, CNEA, Inst Balseiro, San Carlos De Bariloche, Rio Negro, Argentina; 11.UNSAM, CONICET, CNEA, Inst Tecnol Detecc & Astroparticulas, Buenos Aires, DF, Argentina; 12.Univ Tecnol Nacl, Fac Reg Buenos Aires, Buenos Aires, DF, Argentina; 13.Univ Nacl Autonoma Mexico, Mexico City, DF, Mexico; 14.Univ Santiago de Compostela, Santiago De Compostela, Spain; 15.Ist Nazl Fis Nucl, Gran Sasso Sci Inst, Laquila, Italy; 16.Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, Laquila, Italy; 17.CUNY, Lehman Coll, Dept Phys & Astron, Bronx, NY USA; 18.Ist Nazl Fis Nucl, Sez Napoli, Naples, Italy; 19.Univ Complutense Madrid, Madrid, Spain; 20.Inst Space Sci, Bucharest, Romania; 21.Univ Ind Santander, Bucaramanga, Colombia; 22.Observ Pierre Auger, Malargue, Argentina; 23.Observ Pierre Auger & Comis Nacl Energia Atom, Malargue, Argentina; 24.Univ Bucharest, Bucharest, Romania; 25.Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania; 26.Univ Naples Federico II, Dipartimento Fis Ettore Pancini, Naples, Italy; 27.Ohio State Univ, Columbus, OH 43210 USA; 28.Berg Univ Wuppertal, Dept Phys, Wuppertal, Germany; 29.Univ Adelaide, Adelaide, SA, Australia; 30.Univ Grenoble Alpes, CNRS, IN2P3, Lab Phys Subatom & Cosmol, Grenoble, France; 31.Univ Turin, Dipartimento Fis, Turin, Italy; 32.Max Planck Inst Radioastron, Bonn, Germany; 33.Univ Paris Saclay, Univ Paris Sud, CNRS, Inst Phys Nucl Orsay,IN2P3, Orsay, France; 34.Czech Acad Sci, Inst Phys, Prague, Czech Republic; 35.Univ Salento Lecce, Dipartimento Matemat & Fis E De Giorgi, Lecce, Italy; 36.Ist Nazl Fis Nucl, Sez Lecce, Lecce, Italy; 37.Univ Fed Rio de Janeiro, Inst Fis, Rio De Janeiro, RJ, Brazil; 38.Inst Nucl Phys PAN, Krakow, Poland; 39.Inst Kernphys, Karlsruhe Inst Technol, Karlsruhe, Germany; 40.Colorado State Univ, Ft Collins, CO 80523 USA; 41.Rhein Westfal TH Aachen, Physikal Inst A 3, Aachen, Germany; 42.Univ Siegen, Fachbereich Phys Expt Teilchenphys 7, Siegen, Germany; 43.Univ Granada, CAFPE, Granada, Spain; 44.Univ Catania, Dipartimento Fis & Astron, Catania, Italy; 45.Ist Nazl Fis Nucl, Sez Catania, Catania, Italy; 46.Univ Autonoma Chiapas, Tuxtla Gutierrez, Chiapas, Mexico; 47.Univ Milan, Dipartimento Fis, Milan, Italy; 48.Univ Michoacana, Morelia, Michoacan, Mexico; 49.Univ Estadual Campinas, IFGW, Campinas, SP, Brazil; 50.Penn State Univ, University Pk, PA 16802 USA; 51.Case Western Reserve Univ, Cleveland, OH 44106 USA; 52.Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA; 53.Univ Salento, Dipartimento Ingn, Lecce, Italy; 54.Consejo Nacl Invest Cient & Tecn, UBA, Inst Astron & Fis Espacio, Buenos Aires, DF, Argentina; 55.Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina; 56.Univ Buenos Aires, Dept Ciencias Atmosfera & Oceanos, FCEyN, Buenos Aires, DF, Argentina; 57.Consejo Nacl Invest Cient & Tecn, Buenos Aires, DF, Argentina; 58.Univ Fed Fluminense, EEIMVR, Volta Redonda, RJ, Brazil; 59.Natl Inst Kernfys Hoge Energie Fys, Amsterdam, Netherlands; 60.Univ Sao Paulo, Inst Fis Sao Carlos, Sao Carlos, SP, Brazil; 61.Univ Roma Tor Vergata, Dipartimento Fis, Rome, Italy; 62.Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Rome, Italy; 63.Univ Aquila, Dipartimento Sci Fisiche & Chimiche, Laquila, Italy; 64.Univ Fed Parana, Setor Palotina, Palotina, Brazil; 65.Univ Nacl La Plata, IFLP, La Plata, Buenos Aires, Argentina; 66.Consejo Nacl Invest Cient & Tecn, La Plata, Buenos Aires, Argentina; 67.Univ Hamburg, Inst Theoret Phys 2, Hamburg, Germany; 68.Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA; 69.Stichting Astronomisch Onderzoek Nederland ASTRON, Dwingeloo, Netherlands; 70.CUNY, New York, NY 10021 USA; 71.Michigan Technol Univ, Houghton, MI USA; 72.J Stefan Inst, Expt Particle Phys Dept, Ljubljana, Slovenia; 73.Univ Nova Gorica, Lab Astroparticle Phys, Nova Gorica, Slovenia; 74.Consejo Nacl Invest Cient & Tecn, Inst Fis Rosario, UNR, Rosario, Santa Fe, Argentina; 75.Fac Ciencias Bioquim & Farmaceut, UNR, Rosario, Santa Fe, Argentina; 76.Univ Tecnol Nacl, Inst Tecnol Detecc & Astroparticulas, CNEA, CONICET,UNSAM, Mendoza, Argentina; 77.CNEA, CONICET, Fac Reg Mendoza, Mendoza, Argentina; 78.Univ Nantes, CNRS, IN2P3, Ecole Mines Nantes,SUBATECH, Nantes, France; 79.Karlsruhe Inst Technol, Inst Prozessdatenverarbeitung & Elekt, Karlsruhe, Germany; 80.Ist Nazl Fis Nucl, Sez Milano, Milan, Italy; 81.Univ Lodz, Fac Astrophys, Lodz, Poland; 82.Univ Lodz, Fac High Energy Astrophys, Lodz, Poland; 83.Univ Hawaii, Honolulu, HI 96822 USA; 84.Univ Estadual Feira de Santana, Feira de Santana, Brazil; 85.Karlsruhe Inst Technol, Inst Expt Kernphys, Karlsruhe, Germany; 86.Palacky Univ, RCPTM, Olomouc, Czech Republic; 87.Colorado Sch Mines, Golden, CO USA; 88.Univ Fed ABC, Santo Andre, SP, Brazil; 89.Benemerita Univ Autonoma Puebla, Puebla, Mexico; 90.Univ Libre Bruxelles, Brussels, Belgium; 91.CINVESTAV, Ctr Invest & Estudios Avanzados IPN, Mexico City, DF, Mexico; 92.Louisiana State Univ, Baton Rouge, LA 70803 USA; 93.Univ New Mexico, Albuquerque, NM 87131 USA; 94.Univ Fed Pelotas, Pelotas, RS, Brazil; 95.Charles Univ Prague, Inst Particle & Nucl Phys, Fac Math & Phys, Prague, Czech Republic; 96.CITEDEF, Ctr Invest Laseres & Aplicaciones, Villa Martelli, Argentina; 97.Consejo Nacl Invest Cient & Tecn, Villa Martelli, Argentina; 98.Northeastern Univ, Boston, MA 02115 USA; 99.Inst Politecn Nacl, Unidad Profes Interdisciplinaria Ingn & Tecnol Av, Mexico City, DF, Mexico; 100.Univ Groningen, KVI Ctr Adv Radiat Technol, Groningen, Netherlands; 101.Vrije Univ Brussel, Brussels, Belgium; 102.INAF, Ist Astrofis Spaziale & Fis Cosm Palermo, Palermo, Italy; 103.Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil; 104.Univ Bucharest, Phys Dept, Bucharest, Romania; 105.Univ Nebraska, Lincoln, NE USA; 106.Univ Sao Paulo, Escola Engn Lorena, Lorena, SP, Brazil; 107.Univ Leeds, Sch Phys & Astron, Leeds, W Yorkshire, England; 108.Deutsch Elekt Synchrotron DESY, Zeuthen, Germany; 109.Univ Libre Bruxelles, Brussels, Belgium
推荐引用方式 GB/T 7714	Aab, A.,39;Amico, S.,39;Olivo, J. C.. Observation of a large-scale anisotropy in the arrival directions of cosmic rays above 8 x 10(18) eV[J]. SCIENCE,2017,357(6357):1266-1270.
APA	Aab, A.,39;Amico, S.,&39;Olivo, J. C..(2017).Observation of a large-scale anisotropy in the arrival directions of cosmic rays above 8 x 10(18) eV.SCIENCE,357(6357),1266-1270.
MLA	Aab, A.,et al."Observation of a large-scale anisotropy in the arrival directions of cosmic rays above 8 x 10(18) eV".SCIENCE 357.6357(2017):1266-1270.