The X-ray variability properties of PG quasars: XMM-Newton results
| dc.creator | Guainazzi, M. | |
| dc.creator | Jimenez-Bailon, E. | |
| dc.creator | Piconcelli, E. | |
| dc.date | 2004-09-17 | |
| dc.date.accessioned | 2026-07-07T02:14:39Z | |
| dc.date.available | 2026-07-07T02:14:39Z | |
| dc.description | This paper presents preliminary results of a systematic study on the X-ray spectral variability of PG quasars with XMM-Newton. We concentrate on those objects, whose X-ray spectra are well fit in the framework of the ``double Comptonization'' model. On short (<1000 seconds) timescales, variability between the soft (E<2 keV) and the hard (E>2 keV) bands is uncorrelated. In the two objects, for which observations at different epochs are available, spectral variability in the soft X-ray regime is unveiled. Its timescale is constrained in the range between ~1 week and ~1 year. | |
| dc.description | 4 pages, 4 figures, contribution to the proceedings of the conference: "AGN Variability from X-rays to Radio Waves", C.M.Gaskell, I.M.McHardy, B.M.Peterson, S.G.Sergeev eds., ASP | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0409438 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0409438 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/8202 | |
| dc.subject | Astrophysics | |
| dc.title | The X-ray variability properties of PG quasars: XMM-Newton results | |
| dc.type | text |