X-Ray/Gamma-Ray Observations of the PSR B1259-63/SS 2883 system near Apastron

Details X-Ray/Gamma-Ray Observations of the PSR B1259-63/SS 2883 system near Apastron X-Ray/Gamma-Ray Observations of the PSR B1259-63/SS 2883 system near Apastron

1999-05-14

arxiv.org/abs/astro-ph/9905172v1

Astronomy and Astrophysics

Astrophysics

14 pages, 4 figures, accepted for publicatoin in ApJ

Scientific paper

10.1086/307558

We report the results from X-ray and hard X-ray observations of the PSR B1259-63/SS 2883 system with the ASCA and CGRO satellites, performed between 1995 February and 1996 January when the pulsar was near apastron. The system was clearly detected in each of the two ASCA observations with luminosity in the 1-10 keV band of Lx = (9 +- 3) x10^32 (d/2 kpc)^2 erg/s, while CGRO/OSSE did not detect significant hard X-rays from the system. X-ray spectra obtained with ASCA are well-fit by a single power-law spectrum with a photon index of 1.6 +- 0.3. No pulsations were detected in either the ASCA or the OSSE data. We combine all existing X-ray and hard X-ray observations and present the orbital modulation in the luminosity and photon index for the entire orbit. The results are in agreement with predictions based on a synchrotron emission model from relativistic particles in a shocked pulsar wind interacting with the gaseous outflow from the Be star.

Affiliated with

Also associated with

No associations

Rating

X-Ray/Gamma-Ray Observations of the PSR B1259-63/SS 2883 system near Apastron 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 X-Ray/Gamma-Ray Observations of the PSR B1259-63/SS 2883 system near Apastron, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-Ray/Gamma-Ray Observations of the PSR B1259-63/SS 2883 system near Apastron will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-722081