A&A 413, 921-927 (2004)
Complex absorption hides a Type II QSO in IRAS 13197-1627M. Dadina and M. Cappi
IASF-CNR Sezione di Bologna, via Gobetti 101, 40129 Bologna, Italy
(Received 28 July 2003 / Accepted 1 October 2003)
We report on the analysis of a BeppoSAX observation of IRAS 13197-1627. The complexity of the broad band (0.3-100 keV) spectrum of the source prevents us from selecting from two possible best-fit models, i.e. one based on a partial covering and the other on a reflection dominated scenario. Whatever the best fit model, the data imply that: 1) the primary spectrum is heavily obscured by at least two absorbers with column densities of the order of 5 10 23 cm -2 and 2 10 24 cm -2; 2) the intrinsic 2-10 keV luminosity of the source is at least ~2 10 44 erg s -1 thus making IRAS 13197-1627 a type-II QSO (more precisely a type 1.8 QSO) rather than a Seyfert 1.8 galaxy as previously classified. Furthermore, there is marginal evidence of an absorption line at 7.5 keV suggesting a possible outflow with 0.1c similar to recent findings on other QSOs and Seyferts.
Key words: galaxies: active -- galaxies: individual: IRAS 13197-1627 -- X-ray: quasar: general
Offprint request: M. Dadina, email@example.com
© ESO 2004