Broad-band X-ray measurements of GS 1826-238

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dc.creatorZand, J. J. M. in 't
dc.creatorHeise, J.
dc.creatorKuulkers, E.
dc.creatorBazzano, A.
dc.creatorCocchi, M.
dc.creatorUbertini, P.
dc.date1999-07-20
dc.date.accessioned2026-07-07T10:51:33Z
dc.date.available2026-07-07T10:51:33Z
dc.descriptionThe 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.
dc.identifierhttps://arxiv.org/abs/astro-ph/9907265
dc.identifierhttp://arxiv.org/abs/astro-ph/9907265
dc.identifierAstron.Astrophys.347:891,1999
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/184857
dc.subjectAstrophysics
dc.titleBroad-band X-ray measurements of GS 1826-238
dc.typetext

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