PULSED GAMMA-RAYS FROM GEMINGA
CHENG, KS; Ma YQ(马宇倩); MA, YQ
刊名ASTROPHYSICS AND SPACE SCIENCE
1994
卷号222期号:1-2页码:1-7
学科分类Astronomy & Astrophysics
DOI10.1007/BF00627079
通讯作者CHENG, KS (reprint author), UNIV HONG KONG,DEPT PHYS,HONG KONG,HONG KONG.
文章类型Article
英文摘要The pulsed gamma ray spectrum is obtained by analyzing COS-B data of observation no. 14, 39, 54 and 64. We find that the pursed spectrum differs significantly from that of previous reports in which the pulsed component and steady component are not separated. A clear spectral break of the pulsed spectrum occurs at similar to 100 MeV and the majority of the steady emission is concentrated in the lower energy band. We fit the pulsed spectrum by both the outer gap model and the polar gap model and conclude that only the outer gap model can explain the observed spectrum. Furthermore, the gamma ray spectrum suggests that Geminga is located at a distance similar to 300 pc and is a nearly orthogonal rotator.
类目[WOS]Astronomy & Astrophysics
收录类别SCI
WOS记录号WOS:A1994QD51000001
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225422
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
中国科学院高能物理研究所_粒子天体物理中心
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CHENG, KS,Ma YQ,MA, YQ. PULSED GAMMA-RAYS FROM GEMINGA[J]. ASTROPHYSICS AND SPACE SCIENCE,1994,222(1-2):1-7.
APA CHENG, KS,马宇倩,&MA, YQ.(1994).PULSED GAMMA-RAYS FROM GEMINGA.ASTROPHYSICS AND SPACE SCIENCE,222(1-2),1-7.
MLA CHENG, KS,et al."PULSED GAMMA-RAYS FROM GEMINGA".ASTROPHYSICS AND SPACE SCIENCE 222.1-2(1994):1-7.
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