A Revised Parallax and its Implications for RX J185635-3754

Details A Revised Parallax and its Implications for RX J185635-3754 A Revised Parallax and its Implications for RX J185635-3754

2002-04-11

arxiv.org/abs/astro-ph/0204199v1

Astrophys.J. 576 (2002) L145-L148

Astronomy and Astrophysics

Astrophysics

submitted to ApJ Letters

Scientific paper

10.1086/343850

New astrometric analysis of four WFPC2 images of the isolated neutron star RX J185635-3754 show that its distance is 117 +/- 12 pc, nearly double the originally published distance. At the revised distance, the star's age is 5 x 10^5 years, its space velocity is about 185 km/s, and its radiation radius inferred from thermal emission is approximately 15 km, in the range of many equations of state both with and without exotic matter. These measurements remove observational support for an extremely soft equation of state. The star's birthplace is still likely to be in the Upper Sco association, but a connection with zeta Oph is now unlikely.

Affiliated with

Also associated with

No associations

Rating

A Revised Parallax and its Implications for RX J185635-3754 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 A Revised Parallax and its Implications for RX J185635-3754, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Revised Parallax and its Implications for RX J185635-3754 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-66478