The Infrared Counterpart of the Microquasar GRS 1758-258

Details The Infrared Counterpart of the Microquasar GRS 1758-258 The Infrared Counterpart of the Microquasar GRS 1758-258

2002-10-15

arxiv.org/abs/astro-ph/0210350v1

Astrophys.J. 580 (2002) L61

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures; accepted for publication in ApJ Letters

Scientific paper

10.1086/345546

We present revised infrared (2.2 micron) astrometry of the field containing the Galactic microquasar GRS 1758-258, using observations at the Keck I 10-m telescope. We find three candidates for the microquasar within a 3 sigma error circle, but none within 2 sigma. We show that if the 18.4 day X-ray period of GRS 1758-258 is due to a binary orbit, then only one of the three candidates, an early K-type giant, is large enough to power the microquasar via Roche lobe overflow. We therefore identify this star as the infrared counterpart of GRS 1758-258, which we classify as a low mass X-ray binary. Long term infrared monitoring of this source should provide further information about the microquasar system, including a confirmation of the X-ray period and an estimate of the compact object's mass.

Affiliated with

Also associated with

No associations

Rating

The Infrared Counterpart of the Microquasar GRS 1758-258 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 Infrared Counterpart of the Microquasar GRS 1758-258, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Infrared Counterpart of the Microquasar GRS 1758-258 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-569057