Linearly and circularly polarized emission in Sagittarius A
文献类型：期刊论文
| 作者 | Huang, Lei1,2 ; Liu, Siming3; Shen, Zhi-Qiang1,4,5; Cai, Mike J.6; Li, Hui3; Fryer, Christopher L.3
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| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
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| 出版日期 | 2008-04-01 |
| 卷号 | 676期号:2页码:L119-L122 |
| 关键词 | black hole physics galaxy : center plasmas polarization radiative transfer submillimeter |
| 英文摘要 | We perform general relativistic ray-tracing calculations of the transfer of polarized synchrotron radiation through the relativistic accretion flow in Sagittarius (Sgr) A*. Based on a two-temperature magnetorotational instability (MRI) induced accretion mode, the birefringence effects are treated self-consistently. By fitting the spectrum and polarization of Sgr A* from millimeter to near-infrared bands, we are able to not only constrain the basic parameters related to the MRI and the electron heating rate, but also limit the orientation of the accretion torus. These constraints lead to unique polarimetric images, which may be compared with future millimeter and submillimeter VLBI observations. In combination with general relativistic MHD simulations, the model has the potential to test the MRI with observations of Sgr A*. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SUPERMASSIVE BLACK-HOLE ; GALACTIC-CENTER ; SUBMILLIMETER EMISSION ; MILKY-WAY ; ASTERISK ; MILLIMETER ; RADIO ; INSTABILITY ; ROTATION ; SPECTRUM |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000255235900007 |
| 源URL | [http://119.78.226.72/handle/331011/19461]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Los Alamos Natl Lab, Los Alamos, NM 87545 USA 4.USTC, Shanghai 200030, Peoples R China 5.Joint Inst Galaxy & Cosmol JOINGC ShAO, Shanghai 200030, Peoples R China 6.Acad Sinica, Inst Astron & Astrophys, Taipei 106, Taiwan |
| 推荐引用方式 GB/T 7714 | Huang, Lei,Liu, Siming,Shen, Zhi-Qiang,et al. Linearly and circularly polarized emission in Sagittarius A[J]. ASTROPHYSICAL JOURNAL LETTERS,2008,676(2):L119-L122. |
| APA | Huang, Lei,Liu, Siming,Shen, Zhi-Qiang,Cai, Mike J.,Li, Hui,&Fryer, Christopher L..(2008).Linearly and circularly polarized emission in Sagittarius A.ASTROPHYSICAL JOURNAL LETTERS,676(2),L119-L122. |
| MLA | Huang, Lei,et al."Linearly and circularly polarized emission in Sagittarius A".ASTROPHYSICAL JOURNAL LETTERS 676.2(2008):L119-L122. |
入库方式： OAI收割
来源：上海天文台
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