Anisotropy and corotation of galactic cosmic rays.
M. Amenomori,S. Ayabe,X. J. Bi,D. Chen,Shuwang Cui,Danzengluobu,Liming Ding,X. H. Ding,Cunfeng Feng,Zhaoyang Feng,Zhenyong Feng,X. Y. Gao,Q. X. Geng,H. W. Guo,H. H. He,M. He,K. Hibino,N. Hotta,Haibing Hu,Hailan Hu,Jing Huang,Q. Huang,H. Y. Jia,F. Kajino,Katsuaki Kasahara,Y. Katayose,Chihiro Kato,Kazumasa Kawata,Labaciren,G. M. Le,A. F. Li,J. Y. Li,Y. Q. Lou,Hong-peng Lu,S. L. Lu,X. R. Meng,K. Mizutani,K. Mizutani,J. Mu,Kazuoki Munakata,A. Nagai,H. Nanjo,Masaki Nishizawa,M. Ohnishi,I. Ohta,H. Onuma,T. Ouchi,Shunsuke Ozawa,Jieru Ren,To. Saito,Takashi Saito,M. Sakata,Takashi Sako,T. Sasaki,M. Shibata,A. Shiomi,T. Shirai,H. Sugimoto,Masato Takita,Y. H. Tan,N. Tateyama,Shoji Torii,Harufumi Tsuchiya,S. Udo,B. Wang,H. Wang,X. Wang,Y. G. Wang,Hong Wu,L. Xue,Y. Yamamoto,C. T. Yan,X. C. Yang,S. Yasue,Z. H. Ye,G. C. Yu,A. F. Yuan,T. Yuda,H. M. Zhang,J. L. Zhang,Ning Zhang,Xuan Zhang,Y. Zhang,Yi Zhang,Zhaxisangzhu,X. X. Zhou +85 more
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TLDR
Two-dimensional high-precision anisotropy measurement for energies from a few to several hundred teraelectronvolts (TeV) is presented, using the large data sample of the Tibet Air Shower Arrays, revealing finer details of the known anisotropies.Abstract:
The intensity of Galactic cosmic rays is nearly isotropic because of the influence of magnetic fields in the Milky Way. Here, we present two-dimensional high-precision anisotropy measurement for energies from a few to several hundred teraelectronvolts (TeV), using the large data sample of the Tibet Air Shower Arrays. Besides revealing finer details of the known anisotropies, a new component of Galactic cosmic ray anisotropy in sidereal time is uncovered around the Cygnus region direction. For cosmic-ray energies up to a few hundred TeV, all components of anisotropies fade away, showing a corotation of Galactic cosmic rays with the local Galactic magnetic environment. These results have broad implications for a comprehensive understanding of cosmic rays, supernovae, magnetic fields, and heliospheric and Galactic dynamic environments.read more
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PAMELA Measurements of Cosmic-Ray Proton and Helium Spectra
O. Adriani,O. Adriani,G. C. Barbarino,G. A. Bazilevskaya,Roberto Bellotti,Mirko Boezio,E. A. Bogomolov,Lorenzo Bonechi,Lorenzo Bonechi,M. Bongi,V. Bonvicini,S. V. Borisov,S. Bottai,A. Bruno,F. Cafagna,D. Campana,R. Carbone,Per Carlson,Marco Casolino,G. Castellini,L. Consiglio,M. P. De Pascale,C. De Santis,N. De Simone,V. Di Felice,A. M. Galper,William Gillard,L. A. Grishantseva,Giovanna Jerse,A. V. Karelin,S. V. Koldashov,S. Y. Krutkov,A. N. Kvashnin,A. A. Leonov,V. V. Malakhov,V. Malvezzi,L. Marcelli,A. G. Mayorov,W. Menn,V. V. Mikhailov,E. Mocchiutti,Alfonso Monaco,Nicola Mori,Nicola Mori,N. N. Nikonov,G. Osteria,F. Palma,P. Papini,Mark Pearce,P. Picozza,C. Pizzolotto,Marco Ricci,S. B. Ricciarini,Laura Rossetto,Ritabrata Sarkar,M. Simon,Roberta Sparvoli,P. Spillantini,P. Spillantini,Y. I. Stozhkov,Andrea Vacchi,E. Vannuccini,G. I. Vasilyev,S. A. Voronov,Y. T. Yurkin,Juan Wu,G. Zampa,N. Zampa,V. G. Zverev +68 more
TL;DR: PAMELA data challenge the current paradigm of cosmic-ray acceleration in supernova remnants followed by diffusive propagation in the Galaxy and find that the spectral shapes of these two species are different and cannot be described well by a single power law.
Journal ArticleDOI
Cosmic rays from the knee to the highest energies
TL;DR: In this paper, a review summarizes recent developments in the understanding of high-energy cosmic rays focusing on galactic and presumably extragalactic particles in the energy range from the knee (1015 eV ) up to the highest energies observed ( > 10 20 eV).
Journal ArticleDOI
The large-scale cosmic-ray anisotropy as observed with milagro
A. A. Abdo,A. A. Abdo,B. T. Allen,T. Aune,David Berley,Sabrina Casanova,Chang-Hsiao Chen,Brenda Dingus,R. W. Ellsworth,L. Fleysher,R. Fleysher,M. M. Gonzalez,J. A. Goodman,C. M. Hoffman,B. Hopper,P. H. Hüntemeyer,B. E. Kolterman,C. P. Lansdell,J. T. Linnemann,Julie McEnery,Allen Mincer,Peter Nemethy,D. Noyes,J. Pretz,James M. Ryan,P. M. Saz Parkinson,A. L. Shoup,G. Sinnis,A. J. Smith,G. W. Sullivan,V. Vasileiou,G. P. Walker,David A. Williams,G. B. Yodh +33 more
TL;DR: In this article, a harmonic analysis of the large-scale cosmic-ray (CR) anisotropy as observed by the Milagro observatory is presented, which is a water Cherenkov detector located in the Jemez mountains near Los Alamos, New Mexico.
Journal ArticleDOI
The PAMELA Mission: Heralding a new era in precision cosmic ray physics
O. Adriani,G. C. Barbarino,G. A. Bazilevskaya,Roberto Bellotti,Mirko Boezio,E. A. Bogomolov,M. Bongi,V. Bonvicini,S. Bottai,A. Bruno,F. Cafagna,D. Campana,R. Carbone,P. Carlson,P. Carlson,Marco Casolino,G. Castellini,M. P. De Pascale,C. De Santis,N. De Simone,V. Di Felice,Valerio Formato,A. M. Galper,Ugo Giaccari,A. V. Karelin,M. D. Kheymits,Sergey Koldashov,Sergey Koldobskiy,S.Yu. Krut‘kov,A. N. Kvashnin,A. A. Leonov,V. V. Malakhov,L. Marcelli,Matteo Martucci,A. G. Mayorov,W. Menn,V. V. Mikhailov,E. Mocchiutti,Alfonso Monaco,Nicola Mori,Riccardo Munini,N. N. Nikonov,G. Osteria,P. Papini,Mark Pearce,Mark Pearce,P. Picozza,C. Pizzolotto,Marco Ricci,S. B. Ricciarini,Laura Rossetto,Laura Rossetto,Ritabrata Sarkar,M. Simon,Roberta Sparvoli,P. Spillantini,Y. I. Stozhkov,Andrea Vacchi,E. Vannuccini,G. I. Vasilyev,S. A. Voronov,Juan Wu,Juan Wu,Juan Wu,Y. T. Yurkin,G. Zampa,N. Zampa,V. G. Zverev +67 more
TL;DR: The PAMELA (Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics) satellite-borne experiment was launched onboard the Russian Resurs-DK1 satellite by a...
Journal ArticleDOI
Discovery of TeV Gamma-Ray Emission from the Cygnus Region of the Galaxy
A. A. Abdo,B. T. Allen,D. Berley,E. Blaufuss,Sabrina Casanova,C. Chen,D. G. Coyne,R. S. Delay,Brenda Dingus,R. W. Ellsworth,L. Fleysher,R. Fleysher,I. Gebauer,I. Gebauer,M. M. Gonzalez,J. A. Goodman,E. Hays,C. M. Hoffman,B. E. Kolterman,L. A. Kelley,C. P. Lansdell,J. T. Linnemann,J. E. McEnery,Allen Mincer,Igor V. Moskalenko,Peter Nemethy,D. Noyes,James M. Ryan,Frank W. Samuelson,P. M. Saz Parkinson,Michael Schneider,A. Shoup,G. Sinnis,A. J. Smith,Andrew W. Strong,G. W. Sullivan,V. Vasileiou,G. P. Walker,David A. Williams,X. W. Xu,G. B. Yodh +40 more
TL;DR: In this article, the Milagro gamma-ray observatory was used to study the Cygnus region of the galactic plane, showing that it contains at least one new source, MGRO J2019+37 which is 10.9 σ above the isotropic background.
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