SIMBAD references

1998A&A...336..220E - Astronomy and Astrophysics, volume 336, 220-230 (1998/8-1)

On the outburst light curves of soft X-ray transients as response of the accretion disk to mass deposition.

ERTAN U. and ALPAR M.A.

Abstract (from CDS):

We note that the solution of accretion disk dynamics for an initial delta-function mass distribution gives a light curve that fits both the rise and the decay pattern of the outburst light curves of black-hole soft X-ray transients (BSXTs) until the onset of the first mini outburst quite well. The Green's function solution of Lynden-Bell & Pringle (1974MNRAS.168..603L) is employed for two different time-independent viscosity laws to calculate the expected count rates of X-ray photons in the Ginga energy bands as a function of time. For both models basic characteristics of the outburst light curves of two typical sources GS 2000+25 and GS/GRS 1124-68 are reproduced together with plausible values of the thin disk parameter α and the recurrence times. This agreement with the outburst light curves and the source properties during quiescence support the idea of mass accumulation and the sporadic release of accumulated mass at the outer disk.

Abstract Copyright:

Journal keyword(s): black hole physics - accretion, accretion discs - novae, cataclysmic variables - X-rays: stars

Simbad objects: 6

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2021.06.19-17:39:50

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