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Anisotropies of different mass compositions of cosmic rays
Qiao, Bing-Qiang1,2; Liu, Wei3; Guo, Yi-Qing3; Yuan, Qiang1,2,4
2019-12-01
Source PublicationJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
ISSN1475-7516
Issue12Pages:16
Corresponding AuthorQiao, Bing-Qiang(qiaobq@ihep.ac.cn) ; Liu, Wei(liuwei@ihep.ac.cn) ; Guo, Yi-Qing(guoyq@ihep.ac.cn) ; Yuan, Qiang(yuanq@pmo.ac.cn)
AbstractThe spectral hardenings of cosmic ray nuclei above similar to 200 GV followed by softenings around 10 TV, the knee of the all-particle spectrum around PeV energies, as well as the pattern change of the amplitude and phase of the large-scale anisotropies around 100 TeV indicate the complexities of the origin and transportation of Galactic cosmic rays. It has been shown that nearby source(s) are most likely to be the cause of such spectral features of both the spectra and the anisotropies. In this work, we study the anisotropy features of different mass composition (or mass groups) of cosmic rays in this nearby source model. We show that even if the spectral features from the nearby source component is less distinctive compared with the background component from e.g., the population of distant sources, the anisotropy features are more remarkable to be identified. Measurements of the anisotropies of each mass composition (group) of cosmic rays by the space experiments such as DAMPE and HERD and the ground-based experiments such as LHAASO in the near future are expected to be able to critically test this scenario.
Keywordcosmic ray theory particle acceleration supernova remnants
DOI10.1088/1475-7516/2019/12/007
WOS KeywordENERGY-SPECTRA ; PARTICLE ACCELERATION ; SUPERNOVA-REMNANTS ; NUCLEI ; PROPAGATION ; INTENSITY ; EMISSION ; ORIGIN ; PROTON ; TIBET
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000507261900004
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/35513
Collection中国科学院紫金山天文台
Corresponding AuthorQiao, Bing-Qiang; Liu, Wei; Guo, Yi-Qing; Yuan, Qiang
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Peoples R China
2.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Peoples R China
3.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
4.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Qiao, Bing-Qiang,Liu, Wei,Guo, Yi-Qing,et al. Anisotropies of different mass compositions of cosmic rays[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2019(12):16.
APA Qiao, Bing-Qiang,Liu, Wei,Guo, Yi-Qing,&Yuan, Qiang.(2019).Anisotropies of different mass compositions of cosmic rays.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(12),16.
MLA Qiao, Bing-Qiang,et al."Anisotropies of different mass compositions of cosmic rays".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .12(2019):16.
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