Anomaly in the cosmic-ray energy spectrum at GeV-TeV energies

被引：3
|
作者：
Thoudam, Satyendra [1 ]
Horandel, Jorg R. [1 ,2 ]
机构：
[1] Radboud Univ Nijmegen, IMAPP, Dept Astrophys, NL-6500 GL Nijmegen, Netherlands
[2] Nikhef, NL-1098 XG Amsterdam, Netherlands
来源：
24TH EUROPEAN COSMIC RAY SYMPOSIUM (ECRS) | 2015年 / 632卷
关键词：
SUPERNOVA-REMNANTS; INTERSTELLAR-MEDIUM; HELIUM SPECTRA; REACCELERATION; PROTON; ORIGIN;
D O I：
10.1088/1742-6596/632/1/012026
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Recent measurements of cosmic rays by various experiments have found that the energy spectrum of cosmic rays is harder in the TeV region than at GeV energies. The origin of the spectral hardening is not clearly understood. In this paper, we discuss the possibility that the spectral hardening might be due to the effect of re-acceleration of cosmic rays by weak shocks associated with old supernova remnants in the Galaxy.
引用
收藏
页数：6
相关论文
共 50 条
  • [1] GeV-TeV cosmic-ray spectral anomaly as due to reacceleration by weak shocks in the Galaxy
    Thoudam, Satyendra
    Hoerandel, Joerg R.
    [J]. ASTRONOMY & ASTROPHYSICS, 2014, 567
  • [2] Energy Spectrum of Cosmic-Ray Electrons at TeV Energies
    Aharonian, F.
    Akhperjanian, A. G.
    Barres de Almeida, U.
    Bazer-Bachi, A. R.
    Becherini, Y.
    Behera, B.
    Benbow, W.
    Bernloehr, K.
    Boisson, C.
    Bochow, A.
    Borrel, V.
    Braun, I.
    Brion, E.
    Brucker, J.
    Brun, P.
    Buehler, R.
    Bulik, T.
    Buesching, I.
    Boutelier, T.
    Carrigan, S.
    Chadwick, P. M.
    Charbonnier, A.
    Chaves, R. C. G.
    Cheesebrough, A.
    Chounet, L. -M.
    Clapson, A. C.
    Coignet, G.
    Costamante, L.
    Dalton, M.
    Degrange, B.
    Deil, C.
    Dickinson, H. J.
    Djannati-Atai, A.
    Domainko, W.
    Drury, L. O'C.
    Dubois, F.
    Dubus, G.
    Dyks, J.
    Dyrda, M.
    Egberts, K.
    Emmanoulopoulos, D.
    Espigat, P.
    Farnier, C.
    Feinstein, F.
    Fiasson, A.
    Foerster, A.
    Fontaine, G.
    Fuessling, M.
    Gabici, S.
    Gallant, Y. A.
    [J]. PHYSICAL REVIEW LETTERS, 2008, 101 (26)
  • [3] Research on the structure of cosmic-ray electron and positron fluxes in GeV-TeV energy range
    Zheng, Zechun
    Cui, Zhiyi
    Ruan, Jianhong
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS E, 2022, 31 (01):
  • [4] A GeV-TeV particle component and the barrier of cosmic-ray sea in the Central Molecular Zone
    Xiaoyuan Huang
    Qiang Yuan
    Yi-Zhong Fan
    [J]. Nature Communications, 12
  • [5] Anomalous Bremsstrahlung and the Structure of Cosmic-Ray Electron-Positron Fluxes at the GeV-TeV Energy Range
    Zhu, Wei
    Liu, Peng
    Ruan, Jianhong
    Feng, Lei
    Wang, Fan
    [J]. ASTROPHYSICAL JOURNAL, 2020, 896 (02):
  • [6] A GeV-TeV particle component and the barrier of cosmic-ray sea in the Central Molecular Zone
    Huang, Xiaoyuan
    Yuan, Qiang
    Fan, Yi-Zhong
    [J]. NATURE COMMUNICATIONS, 2021, 12 (01)
  • [7] A new GeV-TeV particle component and the barrier of cosmic-ray sea in the CMZ region
    Huang, Xiaoyuan
    Yuan, Qiang
    Fan, Yi-Zhong
    [J]. 37TH INTERNATIONAL COSMIC RAY CONFERENCE, ICRC2021, 2022,
  • [8] Ultrahigh energy cosmic rays and the GeV-TeV diffuse gamma-ray flux
    Kalashev, Oleg E.
    Semikoz, Dmitry V.
    Sigl, Guenter
    [J]. PHYSICAL REVIEW D, 2009, 79 (06):
  • [9] ON THE SHAPE OF THE SPECTRUM OF COSMIC-RAY PROTONS AT ENERGIES ABOVE 1 TEV
    GRIGOROV, NL
    [J]. VESTNIK MOSKOVSKOGO UNIVERSITETA SERIYA 3 FIZIKA ASTRONOMIYA, 1993, 34 (03): : 8 - 14
  • [10] Revisiting the hardening of the cosmic ray energy spectrum at TeV energies
    Thoudam, Satyendra
    Horandel, Jorg R.
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2013, 435 (03) : 2532 - 2542
12345