Chandra and XMM–Newton observations of Tololo 0109-383

¹ Dipartimento di Fisica, Università degli Studi Roma Tre, Italy
² XMM-Newton Science Operation Center/RSSD-ESA, Villafranca del Castillo, Spain
³ Department of Astronomy and Astrophysics, 525 Davey Laboratory, Pennsylvania State University, University Park, PA 16802, USA
⁴ Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK

Corresponding author: G. Matt, matt@fis.uniroma3.it

Received: 17 October 2002
Accepted: 5 December 2002

Abstract

We present and discuss Chandra and XMM–Newton observations of the Seyfert 2 galaxy and Compton–thick absorbed source, Tololo 0109-383. The hard X–ray emission (i.e. above ~2 keV), is dominated by a spatially unresolved reflection component, as already discovered by previous ASCA and BeppoSAX observations. The soft X–ray emission is partly (~15%) extended over about 1 kpc. Below 2 keV, the spectrum is very steep and two emission lines, probably due to recombination to He–like ions of oxygen and neon, are clearly present. Combining X–rays and optical information taken from the literature, we propose an overall scenario for the nuclear regions of this source.