The proper motion of PSR J1550-5418 measured with VLBI: a second magnetar velocity measurement

Details The proper motion of PSR J1550-5418 measured with VLBI: a second magnetar velocity measurement The proper motion of PSR J1550-5418 measured with VLBI: a second magnetar velocity measurement

2012-01-23

arxiv.org/abs/1201.4684v2

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

10 pages, 1 figure in preprint format; ApJL, accepted. Second version includes minor correction to velocity to account for Gal

Scientific paper

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. Using the Long Baseline Array in Australia, we have measured the proper motion of the intermittently radio-bright magnetar J1550-5418 (1E 1547.0-5408) to be 9.2 +/- 0.6 mas/yr. For a likely distance of 6 +/- 2 kpc, the implied transverse velocity is 280 + 130 - 120 km/s after correcting for Galactic rotation. Along with the ~200 km/s 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.

Affiliated with

Also associated with

No associations

Rating

The proper motion of PSR J1550-5418 measured with VLBI: a second magnetar velocity measurement does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The proper motion of PSR J1550-5418 measured with VLBI: a second magnetar velocity measurement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The proper motion of PSR J1550-5418 measured with VLBI: a second magnetar velocity measurement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-497523