期刊
ASTROPHYSICAL JOURNAL LETTERS
卷 748, 期 1, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2041-8205/748/1/L1
关键词
astrometry; pulsars: individual (PSR J1550-5418, 1E 1547.0-5408); stars: neutron
资金
- Commonwealth of Australia
The formation mechanism of neutron stars with extremely large magnetic field strengths (magnetars) remains unclear. Some formation scenarios predict that magnetars should be born with extremely high space velocities, >1000 km s(-1). Using the Long Baseline Array in Australia, we have measured the proper motion of the intermittently radio-bright magnetar PSR J1550-5418 (1E 1547.0-5408): mu = 9.2 +/- 0.6 mas yr-1. For a likely distance of 6 +/- 2 kpc, the implied transverse velocity is 280(-120)(+130) km s(-1) after correcting for Galactic rotation. Along with the approximate to 200 km s(-1) transverse velocity measured for the magnetar XTE J1810-197, this result suggests that formation pathways producing large magnetic fields do not require very large birth kicks.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据