The hard X-ray spectrum of Compton-thick Seyfert 2 galaxies and the synthesis of the XRB
| dc.creator | Matt, Giorgio | |
| dc.creator | Pompilio, Fulvio | |
| dc.creator | La Franca, Fabio | |
| dc.date | 1999-12-16 | |
| dc.date.accessioned | 2026-07-07T02:35:02Z | |
| dc.date.available | 2026-07-07T02:35:02Z | |
| dc.description | A synthesis model for the cosmic X-ray Background (XRB) is presented, which includes a proper treatment of Compton scattering in the absorbing matter for type 2 AGN. Evidence for a decrease of the relative importance of type 2 AGN at high redshift is found, which may be due either to a decrease of the relative number of obscured sources, or (more plausibly) to an increase of the fraction of Compton-thick absorbed sources. The XRB spectrum, soft X-rays and hard X-rays source counts can be simultaneously fitted only if the XRB normalization as derived from BeppoSAX/MECS measurements is adopted. | |
| dc.description | 4 pages. To be published in the proc. of the workshop "Large Scale Structure in the X-ray Universe", Santorini, September 1999 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9912344 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9912344 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/15474 | |
| dc.subject | Astrophysics | |
| dc.title | The hard X-ray spectrum of Compton-thick Seyfert 2 galaxies and the synthesis of the XRB | |
| dc.type | text |