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PULSED GAMMA-RAYS FROM GEMINGA
CHENG, KS; Ma YQ(马宇倩); MA, YQ
1994
发表期刊ASTROPHYSICS AND SPACE SCIENCE
卷号222期号:1-2页码:1-7
通讯作者CHENG, KS (reprint author), UNIV HONG KONG,DEPT PHYS,HONG KONG,HONG KONG.
文章类型Article
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.
学科领域Astronomy & Astrophysics
DOI10.1007/BF00627079
收录类别SCI
WOS类目Astronomy & Astrophysics
WOS记录号WOS:A1994QD51000001
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225422
专题粒子天体物理中心
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GB/T 7714
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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