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TMRT Observations of 26 Pulsars at 8.6 GHz
Zhao, Ru-Shuang1,2; Wu, Xin-Ji3; Yan, Zhen1,4; Shen, Zhi-Qiang1,4; Manchester, R. N.5; Qiao, Guo-Jun3; Xu, Ren-Xin3; Wu, Ya-Jun1,4; Zhao, Rong-Bing1,4; Li, Bin1,4; Du, Yuan-Jie6; Lee, Ke-Jia7; Hao LF(郝龙飞)8; Liu, Qing-Hui1,4; Lu, Ji-Guang3,9; Shang, Lun-Hua10,11; Wang, Jin-Qing1,4; Wang M(汪敏)8; Yuan, Jin1,4; Zhi, Qi-Jun10; Zhong, Wei-Ye1,4
Source PublicationASTROPHYSICAL JOURNAL
2017-08-20
Volume845Issue:2
DOI10.3847/1538-4357/aa8170
Contribution Rank第8完成单位
Indexed BySCI
KeywordPulsars: General
Abstract

Integrated pulse profiles at 8.6 GHz obtained with the Shanghai Tian Ma Radio Telescope (TMRT) are presented for a sample of 26 pulsars. Mean flux densities and pulse width parameters of these pulsars are estimated. For 11 pulsars these are the first high-frequency observations and for a further four, our observations have a better signal-to-noise ratio than previous observations. For one (PSR J0742-2822), the 8.6 GHz profile differs from previously observed profiles. A comparison of 19 profiles with those at other frequencies shows that in nine cases, the separation between the outmost leading and trailing components decreases with frequency, which is roughly in agreement with radius-to-frequency mapping, whereas in the other 10 the separation is nearly constant. Different spectral indices of profile components lead to the variation of integrated pulse profile shapes with frequency. In seven pulsars with multi-component profiles, the spectral indices of the central components are steeper than those of the outer components. For the 12 pulsars with multi-component profiles in the high-frequency sample, we estimate the core width using Gaussian fitting and discuss the width-period relationship.

Funding ProjectNational Natural Science Foundation of China[11173046] ; National Natural Science Foundation of China[11403073] ; National Natural Science Foundation of China[U1631122] ; National Natural Science Foundation of China[11633007] ; National Natural Science Foundation of China[11373011] ; National Natural Science Foundation of China[11673002] ; Natural Science Foundation of Shanghai[13ZR1464500] ; Strategic Priority Research Program The Emergence of Cosmological Structures of the Chinese Academy of Sciences[XDB09000000] ; Strategic Priority Research Program The Emergence of Cosmological Structures of the Chinese Academy of Sciences[XDB23010200] ; Knowledge Innovation Program of the Chinese Academy of Sciences[KJCX1-YW-18] ; Scientific Program of Shanghai Municipality[08DZ1160100]
Funding OrganizationNational Natural Science Foundation of China[11173046, 11403073, U1631122, 11633007, 11373011, 11673002] ; Natural Science Foundation of Shanghai[13ZR1464500] ; Strategic Priority Research Program The Emergence of Cosmological Structures of the Chinese Academy of Sciences[XDB09000000, XDB23010200] ; Knowledge Innovation Program of the Chinese Academy of Sciences[KJCX1-YW-18] ; Scientific Program of Shanghai Municipality[08DZ1160100]
Language英语
Subject Area天文学 ; 射电天文学 ; 射电天文方法
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS IDWOS:000408223500007
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordSCATTERING ICS MODEL ; SOUTHERN PULSARS ; MILLISECOND PULSARS ; EMPIRICAL-THEORY ; FREQUENCY-DEPENDENCE ; RADIO-EMISSION ; INTEGRATED PROFILES ; SPECTRAL BEHAVIOR ; GAMMA-RAY ; POLARIZATION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/11883
Collection射电天文研究组
Corresponding AuthorShen, Zhi-Qiang
Affiliation1.Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
3.School of Physics, Peking University, Beijing 100871, China
4.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Nanjing 210008, China
5.CSIRO Astronomy and Space Science, P.O. Box 76, Epping, NSW 1710, Australia
6.Qian Xuesen Laboratory of Space Technology, NO. 104, Youyi Road, Haidian District, Beijing 100094, China
7.Kavil Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, China
8.Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming 650011, China
9.State Key Laboratory of nuclear Science and Technology, Peking University, Beijing 100871, China
10.School of Physics and Electronic Science, Guizhou Normal University, Guiyang 550001, China
11.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
Recommended Citation
GB/T 7714
Zhao, Ru-Shuang,Wu, Xin-Ji,Yan, Zhen,et al. TMRT Observations of 26 Pulsars at 8.6 GHz[J]. ASTROPHYSICAL JOURNAL,2017,845(2).
APA Zhao, Ru-Shuang.,Wu, Xin-Ji.,Yan, Zhen.,Shen, Zhi-Qiang.,Manchester, R. N..,...&Zhong, Wei-Ye.(2017).TMRT Observations of 26 Pulsars at 8.6 GHz.ASTROPHYSICAL JOURNAL,845(2).
MLA Zhao, Ru-Shuang,et al."TMRT Observations of 26 Pulsars at 8.6 GHz".ASTROPHYSICAL JOURNAL 845.2(2017).
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