Astronomy and Astrophysics – Astrophysics
Scientific paper
1999-07-20
Astron.Astrophys.347:891,1999
Astronomy and Astrophysics
Astrophysics
Scientific paper
The broad band X-ray spectrum of the low-mass X-ray binary (LMXB) GS1826-238 was measured with the narrow-field instruments on BeppoSAX on April 6 and 7, 1997. The spectrum is consistent with the Comptonization of a 0.6 keV thermal spectrum by a hot cloud of temperature equivalent kT=20 keV. During the observation two type I X-ray bursts were detected. From the bursts an upper limit to the distance could be derived of 8 kpc. Combined with an elsewhere determined lower limit of 4 kpc this implies a persistent X-ray luminosity between 3.5 X 10^36 and 1.4 X 10^37 erg/s which is fairly typical for a LMXB X-ray burster. The accurate determination of the energetics of the two bursts and the persistent emission confirm results with the Wide Field Cameras on BeppoSAX in a narrower bandpass (Ubertini et al. 1999). Comparison with independent X-ray measurements taken at other times indicates that GS 1826-238 since its turn-on in 1988 is a rather stable accretor, which is in line with the strong regularity of type I X-ray bursts.
Bazzano Angela
Cocchi Massimo
Heise Jaret
in 't Zand J. M. J.
Kuulkers Eric
No associations
LandOfFree
Broad-band X-ray measurements of GS 1826-238 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 Broad-band X-ray measurements of GS 1826-238, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Broad-band X-ray measurements of GS 1826-238 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-438806