Role of the Fan Beam Model in Population Synthesis of Isolated Radio Pulsars

doi:10.3847/1538-4357/abc426

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	Role of the Fan Beam Model in Population Synthesis of Isolated Radio Pulsars
	Huang, W. J.1; Wang, H. G.1,2
刊名	ASTROPHYSICAL JOURNAL
	2020-12-01
卷号	905 期号:2 页码:144
关键词	Radio pulsars
ISSN号	0004-637X
DOI	10.3847/1538-4357/abc426
产权排序	2
英文摘要	On the basis of the PsrPopPy software package, we developed an evolution model of population synthesis for isolated radio pulsars by incorporating the fan beam model, an alternative radio emission beam model to the widely used conal beam model. With proper choice of related models and parameters, we successfully reproduced the observational distributions of Galactic longitude (l) and latitude (b), spin period, period derivative, dispersion measure and 1.4 GHz flux density for the 1214 isolated pulsars discovered by the Parkes multibeam and Swinburne pulsar surveys. The size of the underlying population of radio-loud pulsars is found to be 2.27 x 10(6), which is larger than the underlying population of radio-loud pulsars simulated with the conal beam model. The model is used to estimate the number of isolated radio pulsars detected by the Galactic-plane pulsar survey with Five hundred-meter Aperture Spherical Telescope (FAST). Approximately 2700 and 240 new isolated pulsars are expected to be discovered in the inner galactic plane (20 degrees l < 90 degrees, divide b divide < 10 degrees) and the outer galactic plane (150 degrees l < 210 degrees, divide b divide < 10 degrees), respectively. These numbers are smaller than those estimated by the evolution models with conal beams and the snapshot models.
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资助项目	National Natural Science Foundation of China[11573008] ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents
WOS关键词	EMPIRICAL-THEORY ; EMISSION ; EVOLUTION ; GEOMETRY ; CONSTRAINTS ; STATISTICS ; DISCOVERY ; PROFILE
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000601134500001
资助机构	National Natural Science Foundation of China ; Astronomical Science and Technology Research Laboratory of Department of Education of Guangdong Province ; Key Laboratory for Astronomical Observation and Technology of Guangzhou ; 2018 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.xao.ac.cn/handle/45760611-7/3811]
专题	脉冲星研究团组
通讯作者	Wang, H. G.
作者单位	1.Guangzhou Univ, Sch Phys & Mat Sci, Dept Astron, Guangzhou 510006, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
推荐引用方式 GB/T 7714	Huang, W. J.,Wang, H. G.. Role of the Fan Beam Model in Population Synthesis of Isolated Radio Pulsars[J]. ASTROPHYSICAL JOURNAL,2020,905(2):144.
APA	Huang, W. J.,&Wang, H. G..(2020).Role of the Fan Beam Model in Population Synthesis of Isolated Radio Pulsars.ASTROPHYSICAL JOURNAL,905(2),144.
MLA	Huang, W. J.,et al."Role of the Fan Beam Model in Population Synthesis of Isolated Radio Pulsars".ASTROPHYSICAL JOURNAL 905.2(2020):144.