SNR G349.7+0.2: A gamma-RAY SOURCE IN THE FAR 3 kpc ARM OF THE GALACTIC CENTER
文献类型：期刊论文
| 作者 | Tian, W. W.1,2; Leahy, D. A.2 |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2014-03-01 |
| 卷号 | 783期号:1 |
| 关键词 | cosmic rays Galaxy: center ISM: lines and bands ISM: supernova remnants |
| 英文摘要 | We analyze the HI absorption profile for TeV supernova remnant (SNR) G349.7+0.2 based on updated knowledge of the inner Galaxy's structure. We significantly revise its kinematic distance from the previous similar to 22 kpc to similar to 11.5 kpc, indicating it is in the far 3 kpc arm of the Galactic center. We give a revised age of similar to 1800 yr for G349.7+0.2 which has a low explosion energy of similar to 2.5 x 10(50) erg. This removes G349.7+0.2 from the set of brightest SNRs in radio and X-ray to gamma-ray wavebands and helps us to better understand gamma-ray emission originating from this remnant. However, one needs to use caution when discussing old kinematic distances of Galactic objects (e.g., SNRs, pulsars, and H II regions) in the range of -12 degrees <= l <= 12 degrees with distance estimates of >= 5.5 kpc. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000332515500002 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6414]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Univ Calgary, Dept Phys & Astron, Calgary, AB T2N 1N4, Canada |
| 推荐引用方式 GB/T 7714 | Tian, W. W.,Leahy, D. A.. SNR G349.7+0.2: A gamma-RAY SOURCE IN THE FAR 3 kpc ARM OF THE GALACTIC CENTER[J]. ASTROPHYSICAL JOURNAL LETTERS,2014,783(1). |
| APA | Tian, W. W.,&Leahy, D. A..(2014).SNR G349.7+0.2: A gamma-RAY SOURCE IN THE FAR 3 kpc ARM OF THE GALACTIC CENTER.ASTROPHYSICAL JOURNAL LETTERS,783(1). |
| MLA | Tian, W. W.,et al."SNR G349.7+0.2: A gamma-RAY SOURCE IN THE FAR 3 kpc ARM OF THE GALACTIC CENTER".ASTROPHYSICAL JOURNAL LETTERS 783.1(2014). |
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来源：国家天文台
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