Volume 393, Number 1, October I 2002
|Page(s)||205 - 214|
|Section||Interstellar and circumstellar matter|
|Published online||18 September 2002|
On the outbursts of black hole soft X-ray transients
Physics Department, Middle East Technical University Ankara 06531, Turkey
2 Sabancı University, Orhanlı-Tuzla 81474 İstanbul/ Turkey e-mail: firstname.lastname@example.org
Corresponding author: Ü. Ertan, email@example.com
Accepted: 4 July 2002
We suggest a new scenario to explain the outburst light curves of black hole soft X-ray transients together with the secondary maximum and the bump seen on their decay phases. Our explanations are based on the disk instability models considering the effect of X-ray irradiation. The scenario is consistent with the observed X-ray delays by a few days with respect to the optical rise for both the main outburst and the later maxima. We test our scenario by numerically solving the disk diffusion equation. The obtained model curve fits well to the observed X-ray outburst photon flux curve of the black hole soft X-ray transient GS/GRS 1124-68, a typical representative of the four BH SXTs with very similar light curves.
Key words: accretion / accretion disks / instabilities / stars: binaries: cose / X-rays: general
© ESO, 2002
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.