Echoes in X-ray binaries; mapping the accretion flow
| dc.creator | O'Brien, K | |
| dc.creator | Horne, K | |
| dc.date | 2001-04-26 | |
| dc.date.accessioned | 2026-07-07T01:58:19Z | |
| dc.date.available | 2026-07-07T01:58:19Z | |
| dc.description | In X-ray binaries much of the optical/UV emission arises from X-rays reprocessed by material in the accretion disk, stream and the companion star. The resulting reprocessed variability will be delayed in time with respect to the X-ray variability by an amount depending on the position of the reprocessing regions. We can determine a range of time-delays present in the system. This time-delay transfer function can be used to `echo-map' the geometry of the reprocessing regions in the binary system. We present our modeling of this transfer function and show results from our echo-mapping campaign using X-ray lightcurves from RXTE, simultaneous with HST. In the X-ray transient, GRO j1655-40, shortly after the 1996 outburst, we find evidence for reprocessing in the outer regions of a thick accretion disk. | |
| dc.description | 8 pages, including figures, to appear in the Proceedings of the Astro-tomography workshop, Brussels, July 2000, eds. H.Boffin, D.Steeghs, J.Cuypers, Springer-Verlag Lecture Notes in Physics Series | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0104428 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0104428 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/2720 | |
| dc.subject | Astrophysics | |
| dc.title | Echoes in X-ray binaries; mapping the accretion flow | |
| dc.type | text |