Interpretation of no radio pulsar inside supernova 1987A: The high plasma cut-off frequency by the remnant media
文献类型：期刊论文
| 作者 | Shang, L. H.1,5; Wang, S. Q.2,3 ; Wang, J. B.3; Wang, D. H.4; Zhang, C. M.2,6; Wang, N.3
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| 刊名 | NEW ASTRONOMY
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| 出版日期 | 2019-05-01 |
| 卷号 | 69页码:43-47 |
| ISSN号 | 1384-1076 |
| 关键词 | Pulsar Neutron star Accretion |
| DOI | 10.1016/j.newast.2018.11.009 |
| 产权排序 | 1 |
| 英文摘要 | Three decades have passed since the supernova SN 1987A was observed in the Large Magellanic Cloud, inside which the product is most likely a neutron star (NS) formed in the core collapse explosion.Although lots of observations with sensitive radio telescopes have taken place, astronomers have not yet detected any evidence for a radio pulsar around the remnant of 1987A. To investigate pulsars inside the SN remnants, we calculate the cut-off oscillation frequency of the plasma around the presumed NS inside SN1987A, as shown to be about 33 GHz at present (2018 CE), which is much higher than the favorite "searching window" (e.g. L-band similar to 1.4 GHz) of radio pulsar surveys that have been commonly exploited by astronomers. Since radio waves with frequencies lower than the plasma cut-off frequency cannot penetrate the SN remnant media, we suggest that astronomers use higher frequency bands to search for a pulsar in SN 1987A.Furthermore, with the expansion of SN remnant media, we find that the plasma cut-off frequency can decay to the L-band (1.4 GHz) in the future. The strategy of finding a pulsar of SN 1987A is that either the high frequency bands of radio telescopes, or the high energy detections at Gamma-ray and X-ray bands by space satellites are applied. |
| WOS关键词 | EMISSION ALTITUDES ; EVOLUTION ; MODEL ; CORE |
| 资助项目 | National Natural Science Foundation of China[U1731238] ; National Natural Science Foundation of China[11703003] ; National Key Research and Development Program of China[2016YFA0400804] ; National Basic Research Program of China grants 973 Programs[2015CB857104] ; National Natural Science Foundation of China[NAOC - Y834081V01] ; 201* Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000461264800005 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/2533]  |
| 专题 | 脉冲星研究团组 新疆天文台_110米口径全可动射电望远镜（SmART）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题4：反射面高精度快速测量与主动面实时闭环修正 |
| 通讯作者 | Wang, S. Q. |
| 作者单位 | 1.Nanjing Univ Sci & Technol, Sch Elect & Opt Engn, Nanjing 210094, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 4.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Guizhou, Peoples R China 5.Qian Xuesen Lab Space Technol, 104 Youyi Rd, Beijing 100094, Peoples R China 6.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shang, L. H.,Wang, S. Q.,Wang, J. B.,et al. Interpretation of no radio pulsar inside supernova 1987A: The high plasma cut-off frequency by the remnant media[J]. NEW ASTRONOMY,2019,69:43-47. |
| APA | Shang, L. H.,Wang, S. Q.,Wang, J. B.,Wang, D. H.,Zhang, C. M.,&Wang, N..(2019).Interpretation of no radio pulsar inside supernova 1987A: The high plasma cut-off frequency by the remnant media.NEW ASTRONOMY,69,43-47. |
| MLA | Shang, L. H.,et al."Interpretation of no radio pulsar inside supernova 1987A: The high plasma cut-off frequency by the remnant media".NEW ASTRONOMY 69(2019):43-47. |
入库方式： OAI收割
来源：新疆天文台
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