| Pulsars in FIRST Observations |
| |
| 作者姓名： | Xiang－HuaLi Jin－LinHan |
| |
| 作者单位： | Xiang-Hua Li and Jin-Lin Han National Astronomical Observatories，Chinese Academy of Sciences，Beijing 100012 |
| |
| 基金项目： | 国家自然科学基金，国家重点基础研究发展计划(973计划)，the Partner Group of MPIfR at NAOC |
| |
| 摘 要： | 1 INTRODUCTION Pulsars receive a large kick velocity during the period of birth, so they move away from theirbirth place, where the center of supernova remnant is believed to be. Measuring the propermotions of pulsars can derive an independent estimate of their ages, which has a number ofastrophysical uses, for example, in the studies of the evolution of neutron star magnetic fieldand of pulsar emission beam. There are three methods of measuring proper motion: (1) traditional optical metho…
|
| 关 键 词： | FIRST 脉冲星 中子星 射电观测 |
Pulsars in FIRST Observations |
| |
| Xiang-Hua Li,Jin-Lin Han.Pulsars in FIRST Observations[J].Chinese Journal of Astronomy and Astrophysics,2002,2(2):146-150. |
| |
| Authors: | Xiang-Hua Li Jin-Lin Han |
| |
| Institution: | NationalAstronomicalObservatories,ChineseAcademyofSciences,Beijing100012 |
| |
| Abstract: | We identify 16 pulsars from the Survey of Faint Images of the Radio Sky at Twenty-cm (FIRST) at 1.4 GHz. Their positions and total flux densities are extracted from the FIRST catalog. By comparing the source positions with those in the PSR catalog, we obtain better determined positions of PSR J1022 1001,J1518 4904,J1652 2651, and proper motion upper limits of PSR J0751 1807,J1012 5307, and J1640 2224. The proper motions of the other ten pulsars are consistent with the catalog values. |
| |
| Keywords: | pulsar: general -stars: neutron |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
