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COMPTEL observation of the flaring quasar PKS0528+134
Zhang S(张澍); Li TB(李惕碚); Wu M(吴枚); Zhang, S; Li, TP; Wu, M
刊名ASTRONOMY & ASTROPHYSICS
1998
卷号340期号:1页码:#REF!
关键词galaxies : active gamma rays : observations quasars : individual : PKS0528+134
学科分类Astronomy & Astrophysics
通讯作者Zhang, S (reprint author), Acad Sci, Inst High Energy Phys, Lab Cosm Ray & High Energy Astrophys, POB 918-3, Beijing, Peoples R China.
文章类型Article
英文摘要With a direct demodulation method, we have reanalyzed the data from the COMPTEL observation of PKS0528+134 during the 1993 March flare in gamma-rays. Our results show that during the flare gamma-rays were detected at a level approximately 2.4-3.8 times higher than the observed intensity in two earlier COMPTEL observations VP 0 and VP 1 in the energy range 3 MeV to 30 MeV. The 3-30 MeV, time variability of the flux follows well the trend as observed by EGRET at higher energies. No convincing excess can be found around the position of PKS0528+134 in the energy range 0.75 MeV to 3 MeV, which indicates a spectral break around 3 MeV. The detections and non-detections in the four standard COMPTEL energy bands are consistent with the earlier reports given by Collmar et al., while the feature that gamma-rays of the quasar still kept on flaring at energies down to 3 MeV is clearly found.
类目[WOS]Astronomy & Astrophysics
收录类别SCI
WOS记录号WOS:000077303200009
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225846
专题院士_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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GB/T 7714
Zhang S,Li TB,Wu M,et al. COMPTEL observation of the flaring quasar PKS0528+134[J]. ASTRONOMY & ASTROPHYSICS,1998,340(1):#REF!.
APA 张澍,李惕碚,吴枚,Zhang, S,Li, TP,&Wu, M.(1998).COMPTEL observation of the flaring quasar PKS0528+134.ASTRONOMY & ASTROPHYSICS,340(1),#REF!.
MLA 张澍,et al."COMPTEL observation of the flaring quasar PKS0528+134".ASTRONOMY & ASTROPHYSICS 340.1(1998):#REF!.
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