Institutional Repository of Radio Astronomy Research Laboratory
| VLBI astrometry of two millisecond pulsars | |
Yan, Zhen1,2,4; Shen, Zhi-qiang1,4; Yuan, Jian-ping3,4 ; Wang, Na3,4; Rottmann, Helge5; Alef, Walter5
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| 2013-02-21 | |
| Conference Name | IAU Symposium 291：Neutron Stars and Pulsars: Challenges and Opportunities after 80 years |
| Source Publication | Neutron Stars and Pulsars: Challenges and Opportunities after 80 years, Proceedings of the International Astronomical Union, IAU Symposium 291 |
| Volume | 291 |
| Pages | 562-564 |
| Conference Date | 20-31 August 2012 |
| Correspondent Email | yanzhen@shao.ac.cn |
| Conference Place | Beijing, China |
| Publisher | Cambridge University Press |
| Project Number | 2012CB821800 ; 10625314 ; 11121062 ; 11173046 |
| Contribution Rank | 3 |
| Abstract | We present astrometric results on two millisecond pulsars, PSR B1257+12 and PSR J1022+1001, as carried out through VLBI. For PSR B1257+12, a model-independent distance of 710-38 +43 pc and proper motion of (mualpha = 46.44 ¡À 0.08 mas/yr, mudelta=-84.87 ¡À 0.32 mas/yr) were obtained from 5 epochs of VLBA and 4 epochs of EVN observations, spanning about 2 years. The two dimensional proper motion of PSR J1022+1001 (mualpha~-10.13 mas/yr, mudelta~16.89 mas/yr) was also estimated, using 3 epochs of EVN observations. Based on our results, the X-ray efficiency of PSR B1257+12 should be in the same range as other millisecond pulsars, and not as low as previously thought. |
| Funding Organization | 973项目 ; IAU ; 973项目 ; IAU ; 国家自然科学基金 ; 国家自然科学基金 ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams |
| Keyword | (Stars:) Pulsars: General |
| DOI | 10.1017/S174392131202488X |
| URL | 查看原文 |
| Language | 英语 |
| ISBN | 978-1-107-03380-1 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/991 |
| Collection | 射电天文研究室_脉冲星研究团组 射电天文研究室 其它 |
| Corresponding Author | Yan, Zhen |
| Affiliation | 1.Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China 2.University of Chinese Academy of Sciences, Beijing 100039, China 3.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, China 4.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, China 5.Max Planck Institute for Radio Astronomy, Bonn 53121, Germany |
| Recommended Citation GB/T 7714 | Yan, Zhen,Shen, Zhi-qiang,Yuan, Jian-ping,et al. VLBI astrometry of two millisecond pulsars[C]:Cambridge University Press,2013:562-564. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| VLBI astrometry of t（35KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Application Full Text | ||
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