Interpretation of no radio pulsar inside supernova 1987A: The high plasma cut-off frequency by the remnant media

doi:10.1016/j.newast.2018.11.009

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	Interpretation of no radio pulsar inside supernova 1987A: The high plasma cut-off frequency by the remnant media
	Wang, S. Q.4,5; Shang, L. H.1,6; Wang, N.4; Zhang, C. M.2,5; Wang, D. H.3; Wang, J. B.4
刊名	NEW ASTRONOMY
	2019-05-01
卷号	69 页码:43-47
关键词	Pulsar Neutron star Accretion
ISSN号	1384-1076
DOI	10.1016/j.newast.2018.11.009
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.
资助项目	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[U1731238] ; National Natural Science Foundation of China[11703003] ; National Natural Science Foundation of China[NAOC - Y834081V01] ; 201* Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents
WOS关键词	EMISSION ALTITUDES ; EVOLUTION ; MODEL ; CORE
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000461264800005
资助机构	National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Basic Research Program of China grants 973 Programs ; National Basic Research Program of China grants 973 Programs ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 201* Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 201* Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Basic Research Program of China grants 973 Programs ; National Basic Research Program of China grants 973 Programs ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 201* Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 201* Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Basic Research Program of China grants 973 Programs ; National Basic Research Program of China grants 973 Programs ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 201* Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 201* Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Basic Research Program of China grants 973 Programs ; National Basic Research Program of China grants 973 Programs ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 201* Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; 201* Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/25279]
专题	中国科学院国家天文台
通讯作者	Wang, S. Q.
作者单位	1.Qian Xuesen Lab Space Technol, 104 Youyi Rd, Beijing 100094, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 3.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Guizhou, Peoples R China 4.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Nanjing Univ Sci & Technol, Sch Elect & Opt Engn, Nanjing 210094, Jiangsu, Peoples R China
推荐引用方式 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.