ALMA Observations of Supernova Remnant N49 in the LMC. I. Discovery of CO Clumps Associated with X-Ray and Radio Continuum Shells
文献类型：期刊论文
| 作者 | Yamane, Y.1; Sano, H.1,2; van Loon, J. Th.3; Filipovic, M. D.4; Fujii, K.5; Tokuda, K.6,7; Tsuge, K.1; Nagaya, T.1; Yoshiike, S.1; Grieve, K.4 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2018-08-10 |
| 卷号 | 863期号:1页码:15 |
| ISSN号 | 0004-637X |
| 关键词 | cosmic rays ISM: clouds ISM: molecules ISM: supernova remnants X-rays: individual (LHA 120-N49) |
| DOI | 10.3847/1538-4357/aacfff |
| 英文摘要 | N49 (LHA 120-N49) is a bright X-ray supernova remnant (SNR) in the Large Magellanic Cloud. We present new (CO)-C-12 (J = 1-0, 3-2), HI, and 1.4 GHz radio continuum observations of the SNR N49 using Mopra, ASTE, ALMA, and ATCA. We have newly identified three H I clouds using ATCA with an angular resolution of similar to 20 '': one associated with the SNR and the others located in front of the SNR. Both the CO and H I clouds in the velocity range from 281 to 291 km s(-1) are spatially correlated with both the soft X-rays (0.2-1.2 keV) and the hard X-rays (2.0-7.0 keV) of N49 on a similar to 10 pc scale. CO 3-2/1-0 intensity ratios indicate higher values of the CO cloud toward the SNR shell with an angular resolution of similar to 45 '', and thus a strong interaction was suggested. Using the ALMA, we have spatially resolved CO clumps embedded within or along the southeastern rim of N49 with an angular resolution of similar to 3 ''. Three of the CO clumps are rim brightened on a 0.7-2 pc scale in both hard X-rays and the radio continuum: this provides further evidence for dynamical interactions between the CO clumps and the SNR shock wave. The enhancement of the radio synchrotron radiation can be understood in terms of magnetic field amplification around the CO clumps via a shock-cloud interaction. We also present a possible scenario in which the recombining plasma that dominates the hard X-rays from N49 was formed via thermal conduction between the SNR shock waves and the cold/dense molecular clumps. |
| WOS关键词 | LARGE-MAGELLANIC-CLOUD ; MAGNETIC-FIELD AMPLIFICATION ; REPEATER SGR-0526-66 ; MOLECULAR CLOUDS ; TELESCOPE ; DISTANCE ; MULTIWAVELENGTH ; SPECTROSCOPY ; COUNTERPART ; COINCIDENT |
| 资助项目 | Australian Government for operation as a National Facility ; Japanese Society for the Promotion of Science (JSPS)[15H05694] ; Japanese Society for the Promotion of Science (JSPS)[16K17664] ; NAOJ ALMA Scientific Research Grant[2016-03B] ; "Building of Consortia for the Development of Human Resources in Science and Technology" of Ministry of Education, Culture, Sports, Science and Technology (MEXT)[01-M1-0305] ; Ministry of Education, Science and Technological Development of the Republic of Serbia[176001] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000441290000011 |
| 资助机构 | Australian Government for operation as a National Facility ; Australian Government for operation as a National Facility ; Japanese Society for the Promotion of Science (JSPS) ; Japanese Society for the Promotion of Science (JSPS) ; NAOJ ALMA Scientific Research Grant ; NAOJ ALMA Scientific Research Grant ; "Building of Consortia for the Development of Human Resources in Science and Technology" of Ministry of Education, Culture, Sports, Science and Technology (MEXT) ; "Building of Consortia for the Development of Human Resources in Science and Technology" of Ministry of Education, Culture, Sports, Science and Technology (MEXT) ; Ministry of Education, Science and Technological Development of the Republic of Serbia ; Ministry of Education, Science and Technological Development of the Republic of Serbia ; Australian Government for operation as a National Facility ; Australian Government for operation as a National Facility ; Japanese Society for the Promotion of Science (JSPS) ; Japanese Society for the Promotion of Science (JSPS) ; NAOJ ALMA Scientific Research Grant ; NAOJ ALMA Scientific Research Grant ; "Building of Consortia for the Development of Human Resources in Science and Technology" of Ministry of Education, Culture, Sports, Science and Technology (MEXT) ; "Building of Consortia for the Development of Human Resources in Science and Technology" of Ministry of Education, Culture, Sports, Science and Technology (MEXT) ; Ministry of Education, Science and Technological Development of the Republic of Serbia ; Ministry of Education, Science and Technological Development of the Republic of Serbia ; Australian Government for operation as a National Facility ; Australian Government for operation as a National Facility ; Japanese Society for the Promotion of Science (JSPS) ; Japanese Society for the Promotion of Science (JSPS) ; NAOJ ALMA Scientific Research Grant ; NAOJ ALMA Scientific Research Grant ; "Building of Consortia for the Development of Human Resources in Science and Technology" of Ministry of Education, Culture, Sports, Science and Technology (MEXT) ; "Building of Consortia for the Development of Human Resources in Science and Technology" of Ministry of Education, Culture, Sports, Science and Technology (MEXT) ; Ministry of Education, Science and Technological Development of the Republic of Serbia ; Ministry of Education, Science and Technological Development of the Republic of Serbia ; Australian Government for operation as a National Facility ; Australian Government for operation as a National Facility ; Japanese Society for the Promotion of Science (JSPS) ; Japanese Society for the Promotion of Science (JSPS) ; NAOJ ALMA Scientific Research Grant ; NAOJ ALMA Scientific Research Grant ; "Building of Consortia for the Development of Human Resources in Science and Technology" of Ministry of Education, Culture, Sports, Science and Technology (MEXT) ; "Building of Consortia for the Development of Human Resources in Science and Technology" of Ministry of Education, Culture, Sports, Science and Technology (MEXT) ; Ministry of Education, Science and Technological Development of the Republic of Serbia ; Ministry of Education, Science and Technological Development of the Republic of Serbia |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/22283]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Yamane, Y. |
| 作者单位 | 1.Nagoya Univ, Dept Phys, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648601, Japan 2.Nagoya Univ, Inst Adv Res, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648601, Japan 3.Keele Univ, Lennard Jones Labs, Keele ST5 5BG, Staffs, England 4.Western Sydney Univ, Locked Bag 1797, Penrith, NSW 1797, Australia 5.Univ Tokyo, Sch Sci, Dept Astron, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1330033, Japan 6.Osaka Prefecture Univ, Grad Sch Sci, Dept Phys Sci, Naka Ku, 1-1 Gakuen Cho, Sakai, Osaka 5998531, Japan 7.Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan 8.Univ Adelaide, Sch Phys Sci, Adelaide, SA 5005, Australia 9.Univ Virginia, Dept Astron, Charlottesville, VA 22904 USA 10.Natl Radio Astron Observ, 520 Edgemont Rd, Charlottesville, VA 22903 USA |
| 推荐引用方式 GB/T 7714 | Yamane, Y.,Sano, H.,van Loon, J. Th.,et al. ALMA Observations of Supernova Remnant N49 in the LMC. I. Discovery of CO Clumps Associated with X-Ray and Radio Continuum Shells[J]. ASTROPHYSICAL JOURNAL,2018,863(1):15. |
| APA | Yamane, Y..,Sano, H..,van Loon, J. Th..,Filipovic, M. D..,Fujii, K..,...&Fukui, Y..(2018).ALMA Observations of Supernova Remnant N49 in the LMC. I. Discovery of CO Clumps Associated with X-Ray and Radio Continuum Shells.ASTROPHYSICAL JOURNAL,863(1),15. |
| MLA | Yamane, Y.,et al."ALMA Observations of Supernova Remnant N49 in the LMC. I. Discovery of CO Clumps Associated with X-Ray and Radio Continuum Shells".ASTROPHYSICAL JOURNAL 863.1(2018):15. |
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来源：国家天文台
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