Impact of Plasma Instability on Constraint of the Intergalactic Magnetic Field | |
Yan, Dahai3,4,5; Zhou, Jianeng2; Zhang, Pengfei3; Zhu, Qianqian1; Wang, Jiancheng4,5 | |
刊名 | ASTROPHYSICAL JOURNAL |
2019 | |
卷号 | 870期号:1页码:5 |
关键词 | galaxies: jets gamma rays: galaxies radiation mechanisms: non-thermal |
ISSN号 | 0004-637X |
DOI | 10.3847/1538-4357/aaef7d |
英文摘要 | A relativistic electron-positron pair beam can be produced in the interaction between TeV photons from a blazar and extragalactic background light. The relativistic e(+/-) pairs lose energy through inverse-Compton scattering (ICS) photons of the cosmic microwave background or plasma instabilities. The dominant energy-loss process is under debate. Based on the assumption that the dominant energy-loss process is ICS, the resulting cascade GeV radiation is usually used to constrain the intergalactic magnetic field (IGMF). Here, we include the energy-loss due to plasma oblique instability in the calculation of cascade gamma-ray flux, and investigate the impact of the plasma instability on the constraint of IGMF. Up-to-date GeV data and archival TeV data of the blazar 1ES 0229+ 200 are used. The results indicate that even if the oblique instability cooling is dominating ICS cooling, the cascade flux could still be used to constrain the IGMF. It is found that with the ratio between the cooling rates of the oblique instability and the ICS varying from 0.1,1 to 10, the lower limit of the IGMF of the cascade flux and the gamma-ray data changes from 8 x 10(-1)8 G, 5 x 10(-18) G to 10(-18) G. If the ratio between the two cooling rates is 30, the estimate of IGMF based on the cascade flux is invalid. |
资助项目 | National Natural Science Foundation of China[NSFC-11803081] ; National Natural Science Foundation of China[NSFC-11573060] ; National Natural Science Foundation of China[NSFC-11573026] ; National Natural Science Foundation of China[NSFC-U1738124] ; National Natural Science Foundation of China[NSFC-11603059] ; National Natural Science Foundation of China[NSFC-11661161010] ; Department of Science and Technology of Yunnan Province[2018FY001(-003)] ; Yunnan University[2018FY001(-003)] ; CAS Light of West China Program |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000454551600006 |
内容类型 | 期刊论文 |
源URL | [http://119.78.226.72/handle/331011/32031] |
专题 | 中国科学院上海天文台 |
通讯作者 | Yan, Dahai |
作者单位 | 1.Nanchang Inst Sci & Technol, Dept Gen Studies, Nanchang 330108, Jiangxi, Peoples R China 2.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 3.Yunnan Univ, Key Lab Astroparticle Phys Yunnan Prov, Dept Astron, Kunming 650091, Yunnan, Peoples R China 4.Chinese Acad Sci, Ctr Astron Megasci, 20A Datun Rd, Beijing 100012, Peoples R China 5.Chinese Acad Sci, Yunnan Observ, Key Lab Struct & Evolut Celestial Objects, Kunming 650011, Yunnan, Peoples R China |
推荐引用方式 GB/T 7714 | Yan, Dahai,Zhou, Jianeng,Zhang, Pengfei,et al. Impact of Plasma Instability on Constraint of the Intergalactic Magnetic Field[J]. ASTROPHYSICAL JOURNAL,2019,870(1):5. |
APA | Yan, Dahai,Zhou, Jianeng,Zhang, Pengfei,Zhu, Qianqian,&Wang, Jiancheng.(2019).Impact of Plasma Instability on Constraint of the Intergalactic Magnetic Field.ASTROPHYSICAL JOURNAL,870(1),5. |
MLA | Yan, Dahai,et al."Impact of Plasma Instability on Constraint of the Intergalactic Magnetic Field".ASTROPHYSICAL JOURNAL 870.1(2019):5. |
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