SIMBAD references

2004A&A...413..921D - Astronomy and Astrophysics, volume 413, 921-927 (2004/1-3)

Complex absorption hides a Type II QSO in IRAS 13197-1627.

DADINA M. and CAPPI M.

Abstract (from CDS):

We report on the analysis of a BeppoSAX observation of IRAS 13197-1627. The complexity of the broad band (0.3-100keV) 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 5x1023cm–2 and ≥2x1024cm–2; 2) the intrinsic 2-10keV luminosity of the source is at least ∼2x1044erg/s 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 E∼7.5keV suggesting a possible outflow with v∼0.1c similar to recent findings on other QSOs and Seyferts.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: individual: IRAS 13197-1627 - X-ray: quasar: general

Simbad objects: 5

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