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Observation of multi-Tev diffuse gamma rays from the galactic plane with the Tibet air shower array

文献类型:期刊论文

作者Tibet ASGamma Collaboration
刊名ASTROPHYSICAL JOURNAL
出版日期2002
卷号580期号:2页码:887-895
关键词INTERSTELLAR RADIATION-FIELD COSMIC-RAY SUPERNOVA-REMNANTS ENERGY-SPECTRA EMISSION ELECTRONS GALAXY SATELLITE SEARCH MATTER
通讯作者Amenomori, M (reprint author), Hirosaki Univ, Dept Phys, Hirosaki, Aomori 0368561, Japan.
英文摘要Data from the Tibet III air shower array (with energies around 3 TeV) and from the Tibet II array (with energies around 10 TeV) have been searched for diffuse gamma rays from the Galactic plane. These arrays have an angular resolution of about 0.degrees9. The sky regions searched are the inner Galaxy, 20degrees less than or equal to l less than or equal to 55degrees, and outer Galaxy, 140 degrees l less than or equal to 225degrees, and \b\ less than or equal to 2degrees or less than or equal to 5degrees. No significant Galactic-plane gamma-ray excess was observed. The 99% confidence level upper limits for gamma-ray intensity obtained are (for \b\ less than or equal to 2degrees) 1.1 x 10(-15) cm(-2) s(-1) sr(-1) MeV-1 at 3 TeV and 4.1 x 10(-17) cm(-2) s(-1) sr(-1) MeV-1 at 10 TeV for the inner Galaxy, and 3.6 x 10(-16) cm(-2) s(-1) sr(-1) MeV-1 at 3 TeV and 1.3 x 10(-17) cm(-2) s(-1) sr(-1) MeV-1 at 10 TeV for the outer Galaxy, assuming a differential spectral index of 2.4. The upper limits are significant in the multi-TeV region when compared to those from Cerenkov telescopes in the lower energy region and other air shower arrays in the higher energy region; however, the results are not sufficient to rule out the inverse Compton model with a source electron spectral index of 2.0.
学科主题Astronomy & Astrophysics
类目[WOS]Astronomy & Astrophysics
收录类别SCI
语种英语
WOS记录号WOS:000179458300023
公开日期2016-02-25
源URL[http://ir.ihep.ac.cn/handle/311005/212253]  
专题高能物理研究所_粒子天体物理中心
作者单位中国科学院高能物理研究所
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Tibet ASGamma Collaboration. Observation of multi-Tev diffuse gamma rays from the galactic plane with the Tibet air shower array[J]. ASTROPHYSICAL JOURNAL,2002,580(2):887-895.
APA Tibet ASGamma Collaboration.(2002).Observation of multi-Tev diffuse gamma rays from the galactic plane with the Tibet air shower array.ASTROPHYSICAL JOURNAL,580(2),887-895.
MLA Tibet ASGamma Collaboration."Observation of multi-Tev diffuse gamma rays from the galactic plane with the Tibet air shower array".ASTROPHYSICAL JOURNAL 580.2(2002):887-895.

入库方式: OAI收割

来源:高能物理研究所

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