Institutional Repository of Radio Astronomy Research Laboratory
| Interpretation of no radio pulsar inside supernova 1987A: The high plasma cut-off frequency by the remnant media | |
Wang, S. Q.1,2 ; Shang, L. H.3,4; Wang, N.1; Zhang, C. M.2,5; Wang, D. H.6; Wang, J. B.1
| |
| 2019-05-01 | |
| Source Publication | NEW ASTRONOMY
 |
| ISSN | 1384-1076 |
| Volume | 69Pages:43-47 |
| Contribution Rank | 1 |
| Abstract | 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. |
| Keyword | Pulsar Neutron star Accretion |
| DOI | 10.1016/j.newast.2018.11.009 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | EMISSION ALTITUDES ; EVOLUTION ; MODEL ; CORE |
| Funding Project | 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 Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000461264800005 |
| Publisher | ELSEVIER SCIENCE BV |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/2534 |
| Collection | 射电天文研究室_脉冲星研究团组 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4：反射面高精度快速测量与主动面实时闭环修正 |
| Corresponding Author | Wang, S. Q. |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Nanjing Univ Sci & Technol, Sch Elect & Opt Engn, Nanjing 210094, Jiangsu, Peoples R China 4.Qian Xuesen Lab Space Technol, 104 Youyi Rd, Beijing 100094, Peoples R China 5.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 6.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Guizhou, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Wang, S. Q.,Shang, L. H.,Wang, N.,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 | Wang, S. Q.,Shang, L. H.,Wang, N.,Zhang, C. M.,Wang, D. H.,&Wang, J. B..(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 | Wang, S. Q.,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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| wang2019.pdf（900KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment