中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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).

入库方式: OAI收割

来源:国家天文台

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