The effect of interstellar and interplanetary medium on precision pulsar timing

被引:0
|
作者
You, X-P. [1 ,2 ]
Hobbs, G. [3 ]
Coles, W. A. [4 ]
Manchester, R. N. [3 ]
Han, J. [2 ]
机构
[1] Southwest Univ, Sch Phys Sci & Technol, Chongqing 400715, Peoples R China
[2] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
[3] CSIRO, Australia Telescope Natl Fac, Epping, NSW 1710, Australia
[4] Univ Calif San Diego, Elect & Comp Engn, La Jolla, CA 92093 USA
来源
关键词
Pulsars : timing-ISM : general-sun : solar wind;
D O I
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中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The ability to correct dispersion measure (DM) variations due to the interstellar and interplanetary medium is essential for high precision pulsar timing. Here we present an analysis of the variations in DM for 20 millisecond pulsars. We show how they affect pulsar timing residuals and how they can be corrected. We also show that our new model of the solar wind electron density implemented into the TEMPO2 pulsar timing package is more accurate than previous models. This paper summarises the work presented in [1, 2].
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页码:181 / +
页数:3
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