DISCOVERY OF MOLECULAR SHELLS ASSOCIATED WITH SUPERNOVA REMNANTS. II. KESTEVEN 75
文献类型：期刊论文
| 作者 | Su, Yang1,2; Chen, Yang1; Yang, Ji2,3 ; Koo, Bon-Chul4; Zhou, Xin1; Jeong, Il-Gyo4; Zhang, Chun-Guang1
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2009-03-20 |
| 卷号 | 694期号:1页码:376-386 |
| ISSN号 | 0004-637X |
| 关键词 | ISM: individual (Kes 75, G29.7-0.3) ISM: molecules supernova remnants |
| 英文摘要 | The young composite supernova remnant (SNR) Kesteven 75 (Kes 75), with a pulsar wind nebula at its center, has an unusual morphology with a bright southern half-shell structure in multiwavelengths. The distance to Kes 75 has long been uncertain. Aiming to address these issues, we have made millimeter spectroscopic observations of the molecular gas toward the remnant. The V(LSR) similar to 83-96 km s(-1) molecular clouds (MCs) are found to overlap a large northwestern region of the remnant and are suggested to be located in front of the SNR along the line of sight. Also in the remnant area, the V(LSR) = 45-58 km s(-1) MC shows a blueshifted broadening in the (12)CO (J = 1-0) line profile and a perturbed position-velocity structure near the edge of the remnant, with the intensity centroid sitting in the northern area of the remnant. In particular, a cavity surrounded by a molecular shell is unveiled in the intensity map in the broadened blue wing (45-51 km s(-1)), and the southern molecular shell follows the bright partial SNR shell seen in X-rays, mid-infrared, and radio continuum. These observational features provide effective evidences for the association of Kes 75 with the adjacent 54 km s(-1) MC. This association leads to a determination of the kinematic distance at similar to 10.6 kpc to the remnant, which agrees with a location at the far side of the Sagittarius arm. The morphological coincidence of the shell seen in multiwavelengths is consistent with a scenario in which the SNR shock hits a pre-existing dense shell. This dense molecular shell is suggested to likely represent the debris of the cooled, clumpy shell of the progenitor's wind bubble proximately behind the 54 km s(-1) cloud. The discovery of the association with MC provides a possible explanation for the gamma-ray excess of the remnant. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | PULSAR WIND NEBULA ; GAMMA-RAY EMISSION ; X-RAY ; GALACTIC PLANE ; 3C 391 ; INTERSTELLAR BUBBLES ; CHANDRA OBSERVATIONS ; CTB-109 G109.1-1.0 ; ASCA OBSERVATIONS ; PSR J1846-0258 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000264291700038 |
| 公开日期 | 2011-12-08 |
| 源URL | [http://159.226.72.40/handle/332002/1443]  |
| 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.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 4.Seoul Natl Univ, SEES, Astron Program, Seoul 151742, South Korea |
| 推荐引用方式 GB/T 7714 | Su, Yang,Chen, Yang,Yang, Ji,et al. DISCOVERY OF MOLECULAR SHELLS ASSOCIATED WITH SUPERNOVA REMNANTS. II. KESTEVEN 75[J]. ASTROPHYSICAL JOURNAL,2009,694(1):376-386. |
| APA | Su, Yang.,Chen, Yang.,Yang, Ji.,Koo, Bon-Chul.,Zhou, Xin.,...&Zhang, Chun-Guang.(2009).DISCOVERY OF MOLECULAR SHELLS ASSOCIATED WITH SUPERNOVA REMNANTS. II. KESTEVEN 75.ASTROPHYSICAL JOURNAL,694(1),376-386. |
| MLA | Su, Yang,et al."DISCOVERY OF MOLECULAR SHELLS ASSOCIATED WITH SUPERNOVA REMNANTS. II. KESTEVEN 75".ASTROPHYSICAL JOURNAL 694.1(2009):376-386. |
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来源：紫金山天文台
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