X-ray/Optical Bursts from GS 1826-24

Details X-ray/Optical Bursts from GS 1826-24 X-ray/Optical Bursts from GS 1826-24

1999-09-29

arxiv.org/abs/astro-ph/9909488v1

Astronomy and Astrophysics

Astrophysics

9 pages, 9 figures, MNRAS accepted

Scientific paper

10.1046/j.1365-8711.2000.03121.x

We report results from the first simultaneous X-ray (RXTE) and optical (SAAO) observations of the low-mass X-ray binary GS 1826-24 in June 1998. A type-I burst was detected in both X-ray and optical wavelengths. Its energy-dependent profile, energetics and spectral evolution provide evidence for an increase in the X-ray but not fpr photospheric radius expansion. However, we may still derive an upper limit for its distance of $7.5\pm0.5$ kpc, assuming a peak flux of 2.8\times 10^{-8} erg cm$^{-2}$ s$^{-1}$. A ~3 s optical delay with respect to the X-ray burst is also observed and we infer that this is related to the X-ray reprocessing in the accretion disk into the optical. This provides support for the recently proposed orbital period of ~2 h. We also present an ASCA observation from March 1998, during which two X-ray bursts were detected.

Affiliated with

Also associated with

No associations

Rating

X-ray/Optical Bursts from GS 1826-24 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/Optical Bursts from GS 1826-24, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-ray/Optical Bursts from GS 1826-24 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-548185