Soft-excess in ULX spectra: the chilled-disk scenario
| dc.creator | Soria, Roberto | |
| dc.creator | Goncalves, Anabela | |
| dc.creator | Kuncic, Zdenka | |
| dc.date | 2006-11-05 | |
| dc.date.accessioned | 2026-07-07T10:40:46Z | |
| dc.date.available | 2026-07-07T10:40:46Z | |
| dc.description | Soft X-ray spectra of ULXs show small deviations from a power-law model, that can be attributed to reprocessing in a fast, ionized outflow, or to thermal emission from a cool disk. If it is thermal emission, the cool peak temperature can be explained by an inner disk that radiates only a small fraction of the gravitational power, transferring the rest to an upscattering medium which is then responsible for the dominant power-law component. This scenario does not require intermediate-mass black holes: we use a phenomenological model to show that the observed X-ray luminosities and spectra of ULXs are consistent with typical masses ~ 50-100 Msun. | |
| dc.description | To appear in the proceedings of "The Multicoloured Landscape of Compact Objects and their Explosive Progenitors: Theory vs Observations", Cefalu', Sicily, June 11-24, 2006 (AIP) | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0611153 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0611153 | |
| dc.identifier | AIPConf.Proc.924:919-922,2007 | |
| dc.identifier | doi:10.1063/1.2774966 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/181428 | |
| dc.subject | Astrophysics | |
| dc.title | Soft-excess in ULX spectra: the chilled-disk scenario | |
| dc.type | text |