KMS of Xinjiang Astronomical Observatory, CAS
| THE METAL-ENRICHED THERMAL COMPOSITE SUPERNOVA REMNANT KESTEVEN 41 (G337.8-0.1) IN A MOLECULAR ENVIRONMENT | |
| Zhang, Gao-Yuan1; Chen, Yang1,2; Su, Yang3,4; Zhou, Xin2,3,4; Pannuti, Thomas G.5; Zhou, Ping1 | |
| 2015 | |
| Source Publication | Astrophysical Journal
 |
| ISSN | 0004-637X |
| Volume | 799Issue:1Pages:103 |
| Abstract | The physical nature of thermal composite supernova remnants (SNRs) remains controversial. We have revisited the archival XMM-Newton and Chandra data of the thermal composite SNR Kesteven 41 (Kes 41 or G337.8-0.1) and performed a millimeter observation toward this source in the (CO)-C-12, (CO)-C-13, and (CO)-O-18 lines. The X-ray emission, mainly concentrated toward the southwestern part of the SNR, is characterized by distinct S and Ar He-like lines in the spectra. The X-ray spectra can be fitted with an absorbed nonequilibrium ionization collisional plasma model at a temperature of 1.3-2.6 keV and an ionization timescale of 0.1-1.2 x 10(12) cm(-3) s. The metal species S and Ar are overabundant, with 1.2-2.7 and 1.3-3.8 solar abundances, respectively, which strongly indicate the presence of a substantial ejecta component in the X-ray-emitting plasma of this SNR. Kes 41 is found to be associated with a giant molecular cloud (MC) at a systemic local standard of rest velocity of -50 km s(-1) and confined in a cavity delineated by a northern molecular shell, a western concave MC that features a discernible shell, and an Hi cloud seen toward the southeast of the SNR. The birth of the SNR in a preexisting molecular cavity implies a mass of greater than or similar to 18M(circle dot) for the progenitor if it was not in a binary system. Thermal conduction and cloudlet evaporation seem to be feasible mechanisms to interpret the X-ray thermal composite morphology, and the scenario of gas reheating by the shock reflected from the cavity wall is quantitatively consistent with the observations. An updated list of thermal composite SNRs is also presented in this paper. |
| Keyword | Ism: Individual Objects (G337.8-0.1=kesteven 41) Ism: Molecules Ism: Supernova Remnants |
| Subtype | Article |
| DOI | 10.1088/0004-637x/799/1/103 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | x-ray-emission ; galactic plane survey ; sagittarius-a-east ; xmm-newton ; observations ; radiative recombination continua ; g304.6+0.1 kes 17 ; chandra observations ; asca observations ; ic 443 ; overionized plasma |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000348214500101 |
| Project Number | 11233001 ; 11103082 ; 11403104 ; 2015CB857100 ; 20120091110048 ; BK20141044 |
| Funding Organization | NSFC ; 973 Program grant ; Educational Ministry of China ; Jiangsu Provincial Natural Science Foundation |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/1611 |
| Collection | 110米口径全可动射电望远镜（QTT）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题1：大样本射电天体的观测和前沿问题研究 |
| Corresponding Author | Chen, Yang |
| Affiliation | 1.Department of Astronomy, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, China 2.Key Laboratory of Modern Astronomy and Astrophysics, Nanjing University, Ministry of Education, Nanjing 210093, China 3.Purple Mountain Observatory, CAS, 2 West Beijing Road, Nanjing 210008, China 4.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Nanjing 210008, China 5.Space Science Center, Department of Earth and Space Sciences, Morehead State University, 235 Martindale Drive, Morehead, KY 40351, USA |
| Recommended Citation GB/T 7714 | Zhang, Gao-Yuan,Chen, Yang,Su, Yang,et al. THE METAL-ENRICHED THERMAL COMPOSITE SUPERNOVA REMNANT KESTEVEN 41 (G337.8-0.1) IN A MOLECULAR ENVIRONMENT[J]. Astrophysical Journal,2015,799(1):103. |
| APA | Zhang, Gao-Yuan,Chen, Yang,Su, Yang,Zhou, Xin,Pannuti, Thomas G.,&Zhou, Ping.(2015).THE METAL-ENRICHED THERMAL COMPOSITE SUPERNOVA REMNANT KESTEVEN 41 (G337.8-0.1) IN A MOLECULAR ENVIRONMENT.Astrophysical Journal,799(1),103. |
| MLA | Zhang, Gao-Yuan,et al."THE METAL-ENRICHED THERMAL COMPOSITE SUPERNOVA REMNANT KESTEVEN 41 (G337.8-0.1) IN A MOLECULAR ENVIRONMENT".Astrophysical Journal 799.1(2015):103. |
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| Zhang_2015_ApJ_799_1（2381KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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