MOLECULAR ENVIRONMENT AND THERMAL X-RAY SPECTROSCOPY OF THE SEMICIRCULAR YOUNG COMPOSITE SUPERNOVA REMNANT 3C 396
文献类型：期刊论文
| 作者 | Su, Yang1,2; Chen, Yang2,3; Yang, Ji1,4 ; Koo, Bon-Chul5; Zhou, Xin2; Lu, Deng-Rong1; Jeong, Il-Gyo5; DeLaney, Tracey6
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2011-01-20 |
| 卷号 | 727期号:1页码:43(11pp) |
| 关键词 | ISM: individual objects (3C 396 G39.2-0.3) ISM: molecules ISM: supernova remnants |
| ISSN号 | 0004-637X |
| 英文摘要 | We have investigated the molecular environment of the semicircular composite supernova remnant (SNR) 3C 396 and performed a Chandra spatially resolved thermal X-ray spectroscopic study of this young SNR. With our CO millimeter observations, we find that the molecular clouds (MCs) at V-LSR similar to 84 km s(-1) can better explain the multiwavelength properties of the remnant than the V-LSR = 67-72 km s(-1) MCs that are suggested by Lee et al. At around 84 km s-1, the western boundary of the SNR is perfectly confined by the western molecular wall. The CO emission fades out from west to east, indicating that the eastern region is of low gas density. In particular, an intruding finger/pillar-like MC, which may be shocked at the tip, can well explain the X-ray and radio enhancement in the southwest and some infrared filaments there. The SNR-MC interaction is also favored by the relatively elevated (CO)-C-12 J = 2-1/J = 1-0 line ratios in the southwestern "pillar tip" and the molecular patch on the northwestern boundary. The redshifted (CO)-C-12 (J = 1-0 and J = 2-1) wings (86-90 km s(-1)) of an eastern 81 km s(-1) molecular patch may be the kinematic evidence for shock-MC interaction. We suggest that the 69 km s(-1) MCs are in the foreground based on Hi self-absorption while the 84 km s(-1) MCs at a distance of 6.2 kpc (the tangent point) are in physical contact with SNR 3C 396. The X-ray spectral analysis suggests an SNR age of similar to 3 kyr. The metal enrichment of the X-ray emitting gas in the north and south implies a 13-15M(circle dot) B1-B2 progenitor star. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | KINEMATIC DISTANCE AMBIGUITY ; GALACTIC RING SURVEY ; SELF-ABSORPTION ; CO SURVEY ; H-I ; CLOUDS ; GAS ; DISCOVERY ; G39.2-0.3 ; IC-443 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000285992000043 |
| 公开日期 | 2012-08-07 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/4408]  |
| 专题 | 紫金山天文台_分子云与恒星形成研究团组 |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China 3.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210093, Peoples R China 4.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 5.Seoul Natl Univ, Astron Program, Dept Phys & Astron, Seoul 151747, South Korea 6.MIT, Kavli Inst Astrophys & Space Res, Cambridge, MA 02139 USA |
| 推荐引用方式 GB/T 7714 | Su, Yang,Chen, Yang,Yang, Ji,et al. MOLECULAR ENVIRONMENT AND THERMAL X-RAY SPECTROSCOPY OF THE SEMICIRCULAR YOUNG COMPOSITE SUPERNOVA REMNANT 3C 396[J]. ASTROPHYSICAL JOURNAL,2011,727(1):43(11pp). |
| APA | Su, Yang.,Chen, Yang.,Yang, Ji.,Koo, Bon-Chul.,Zhou, Xin.,...&DeLaney, Tracey.(2011).MOLECULAR ENVIRONMENT AND THERMAL X-RAY SPECTROSCOPY OF THE SEMICIRCULAR YOUNG COMPOSITE SUPERNOVA REMNANT 3C 396.ASTROPHYSICAL JOURNAL,727(1),43(11pp). |
| MLA | Su, Yang,et al."MOLECULAR ENVIRONMENT AND THERMAL X-RAY SPECTROSCOPY OF THE SEMICIRCULAR YOUNG COMPOSITE SUPERNOVA REMNANT 3C 396".ASTROPHYSICAL JOURNAL 727.1(2011):43(11pp). |
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来源：紫金山天文台
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