TMRT Observations of 26 Pulsars at 8.6 GHz
TMRT Observations of 26 Pulsars at 8.6 GHz
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8.6 GHz 26 颗脉冲星的 TMRT 观测
DOI:
10.3847/1538-4357/aa8170
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发表时间:
2017-07
影响因子:
4.9
通讯作者:
Zhong Wei-Ye
中科院分区:
文献类型:
--
作者:
Zhao Ru-Shuang;Wu Xin-Ji;Yan Zhen;Shen Zhi-Qiang;Manchester R. N.;Qiao Guo-Jun;Xu Ren-Xin;Wu Ya-Jun;Zhao Rong-Bing;Li Bin;Du Yuan-Jie;Lee Ke-Jia;Hao Long-Fei;Liu Qing-Hui;Lu Ji-Guang;Shang Lun-Hua;Wang Jin-Qing;Wang Min;Yuan Jin;Zhi Qi-Jun;Zhong Wei-Ye
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.
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DOI:
10.1086/164807
发表时间:
1986-12
期刊:
The Astrophysical Journal
影响因子:
--
作者:
T. Hankins;B. Rickett
通讯作者:
T. Hankins;B. Rickett
DOI:
10.1086/313245
发表时间:
1998-10
期刊:
The Astrophysical Journal Supplement Series
影响因子:
--
作者:
I. Stairs;I. Stairs;S. Thorsett;F. Camilo
通讯作者:
I. Stairs;I. Stairs;S. Thorsett;F. Camilo
DOI:
10.1086/172361
发表时间:
1993-03
期刊:
The Astrophysical Journal
影响因子:
--
作者:
J. Rankin
通讯作者:
J. Rankin
DOI:
10.1086/151164
发表时间:
1971
期刊:
The Astrophysical Journal
影响因子:
--
作者:
T. Hankins
通讯作者:
T. Hankins
影响因子:
4.8
作者:
M. Keith;R. Shannon;S. Johnston
通讯作者:
M. Keith;R. Shannon;S. Johnston