Do NLS1s and ultrasoft AGN have irradiated, warped accretion disks?
| dc.creator | Puchnarewicz, E. M. | |
| dc.creator | Soria, R. | |
| dc.date | 2002-02-01 | |
| dc.date.accessioned | 2026-07-07T02:02:37Z | |
| dc.date.available | 2026-07-07T02:02:37Z | |
| dc.description | When Beppo-SAX measured the 0.1--12 keV spectrum of RE J1034+396, observations in the optical, UV and EUV were also taken within a few weeks. This multiwavelength spectrum placed very strong constraints on its unusually hot big blue bump component, which has been attributed to a high (almost Eddington) rate of accretion onto a disk surrounding a low mass black hole. However, while a simple, geometrically-thin accretion disk provides a good fit to the UV to X-ray continuum, it leaves a residual flat and featureless component in the optical. We propose that the disk is actually flared or warped and that the central ionizing EUV/X-ray continuum is irradiating the outer parts of the disk and boosting the optical/UV continuum flux. The relatively narrow permitted lines may be due to a resulting disk wind. This physical interpretation may explain the link between ultrasoft X-ray excesses and broad line velocity in the AGN class as a whole. It may also have implications for the possible relationship between ultrasoft AGN and galactic black holes. | |
| dc.description | to appear in the Proceedings of the Symposium "New Visions of the X-ray Universe in the XMM-Newton and Chandra Era", 26-30 November 2001, ESTEC, The Netherlands | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0202030 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0202030 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/4104 | |
| dc.subject | Astrophysics | |
| dc.title | Do NLS1s and ultrasoft AGN have irradiated, warped accretion disks? | |
| dc.type | text |