On the Nature of the Bursting X-Ray Pulsar GRO J1744-28

Details On the Nature of the Bursting X-Ray Pulsar GRO J1744-28 On the Nature of the Bursting X-Ray Pulsar GRO J1744-28

1996-02-20

arxiv.org/abs/astro-ph/9602102v2

Astronomy and Astrophysics

Astrophysics

10 pages, 2 figures, uuencoded gzipped tarred file. Uses AAS macros v. 4. Revised shortened paper, accepted for publication in

Scientific paper

10.1086/310126

The unusual properties of the bursting X-ray pulsar GRO J1744-28 are explained in terms of a low-mass X-ray binary system consisting of an evolved stellar companion transferring mass through Roche-lobe overflow onto a neutron star, implying that the inclination of the system is < 18 degrees. Interpretation of the QPO at frequency nu(QPO) = 40 Hz using the beat-frequency model of Alpar \& Shaham and the measured period derivative with the Ghosh \& Lamb accretion-torque model implies that the persistent X-ray luminosity of the source is approximately equal to the Eddington luminosity and that the neutron star has a surface equatorial magnetic field = 2e10 [40 Hz/nu(QPO)] G for standard neutron star parameters. This implies a distance to GRO J1744-28 of ~ 5 [nu(QPO)/40 Hz]^{1/6} b^{1/2} kpc, where b < 1 is a correction factor that depends on the orientation of the neutron star.

Affiliated with

Also associated with

No associations

Rating

On the Nature of the Bursting X-Ray Pulsar GRO J1744-28 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 On the Nature of the Bursting X-Ray Pulsar GRO J1744-28, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the Nature of the Bursting X-Ray Pulsar GRO J1744-28 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-437841