5.0 GHz TMRT Observations of 71 Pulsars

doi:10.3847/1538-4357/ab05de

	5.0 GHz TMRT Observations of 71 Pulsars
	Zhao, Ru-Shuang 1,2; Yan, Zhen 1,3; Wu, Xin-Ji 4; Shen, Zhi-Qiang1,3 ; Manchester, R. N.5; Liu, Jie1,6 ; Qiao, Guo-Jun 4; Xu, Ren-Xin 4; Lee, Ke-Jia 7
	2019-03-20
发表期刊	ASTROPHYSICAL JOURNAL
ISSN	0004-637X
卷号	874 期号:1
发表状态	已发表
DOI	10.3847/1538-4357/ab05de
摘要	We present integrated pulse profiles at 5 GHz for 71 pulsars, including eight millisecond pulsars (MSPs), obtained using the Shanghai Tian Ma Radio Telescope. Mean flux densities and pulse widths are measured. For 19 normal pulsars and one MSP, these are the first detections at 5 GHz-and for a further 19, including five MPSs, the profiles have a better signal-to-noise ratio than previous observations. Mean flux density spectra between 400 MHz and 9 GHz are presented for 27 pulsars and correlations of power-law spectral index are found with characteristic age, radio pseudo-luminosity, and spin-down luminosity. Mode changing was detected in five pulsars. The separation between the main pulse and interpulse is shown to be frequency independent for six pulsars, but a frequency dependence of the relative intensity of the main pulse and interpulse is found. The frequency dependence of component separations is investigated for 20 pulsars, and three groups are found: in seven cases, the separation between the outmost leading and trailing components decreases with frequency, roughly in agreement with radius-to-frequency mapping; in 11 cases, the separation is nearly constant; in the remaining two cases, the separation between the outmost components increases with frequency. We obtain the correlations of pulse widths with pulsar period and estimate the core widths of 23 multicomponent profiles and conal widths of 17 multicomponent profiles at 5.0 GHz using Gaussian fitting, and we discuss the width-period relationship at 5 GHz compared with the results at at 1.0 and 8.6 GHz.
关键词	pulsars: general radiation mechanisms: non-thermal
收录类别	SCI ; SCIE
语种	英语
资助项目	National Key R&D Program of China[2018YFA0404602]
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
WOS记录号	WOS:000462490200002
出版者	IOP PUBLISHING LTD
WOS关键词	EMPIRICAL-THEORY ; RADIO PULSARS ; FREQUENCY-DEPENDENCE ; MILLISECOND PULSARS ; SPECTRAL BEHAVIOR ; SOUTHERN PULSARS ; X-RAY ; INTERPULSE EMISSION ; DRIFTING SUBPULSES ; WIDTH STATISTICS
原始文献类型	Article
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/30637
专题	物质科学与技术学院_特聘教授组_沈志强组物质科学与技术学院_博士生
通讯作者	Shen, Zhi-Qiang
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China 4.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 5.CSIRO Astron & Space Sci, POB 76, Epping, NSW 1710, Australia 6.Shanghai Tech Univ, Shanghai 201210, Peoples R China 7.Peking Univ, Kavil Inst Astron & Astrophys, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Ru-Shuang,Yan, Zhen,Wu, Xin-Ji,et al. 5.0 GHz TMRT Observations of 71 Pulsars[J]. ASTROPHYSICAL JOURNAL,2019,874(1).
APA	Zhao, Ru-Shuang.,Yan, Zhen.,Wu, Xin-Ji.,Shen, Zhi-Qiang.,Manchester, R. N..,...&Lee, Ke-Jia.(2019).5.0 GHz TMRT Observations of 71 Pulsars.ASTROPHYSICAL JOURNAL,874(1).
MLA	Zhao, Ru-Shuang,et al."5.0 GHz TMRT Observations of 71 Pulsars".ASTROPHYSICAL JOURNAL 874.1(2019).