X-ray observations of the Compton-thick Seyfert 2 galaxy, NGC 5643

We present results from a ~55 ks long XMM-Newton observation of the obscured AGN, NGC 5643, performed in July 2009. A previous, shorter (about 10 ks) XMM-Newton observation in February 2003 had left two major issues open, the nature of the hard X-ray emission (Compton-thin vs. Compton-thick) and of...

Full description

Saved in:
Bibliographic Details
Published in:Astronomy and astrophysics (Berlin) 2013-08, Vol.556, p.1-6
Main Authors: Matt, G., Bianchi, S., Marinucci, A., Guainazzi, M., Iwawasa, K., Jimenez Bailon, E.
Format: Article
Language:English
Subjects:
Astronomy
Clusters
Emission
galaxies: active
Photoionization
Soft x-rays
X-ray sources
X-rays
X-rays: galaxies
X-rays: individuals: Abell 3602
X-rays: individuals: CXOJ143244.5-442020
X-rays: individuals: NGC 5643
X-rays: individuals: NGC 5643 X-1
XMM (spacecraft)
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We present results from a ~55 ks long XMM-Newton observation of the obscured AGN, NGC 5643, performed in July 2009. A previous, shorter (about 10 ks) XMM-Newton observation in February 2003 had left two major issues open, the nature of the hard X-ray emission (Compton-thin vs. Compton-thick) and of the soft X-ray excess (photoionized vs. collisionally ionized matter). The new observation shows that the source is Compton-thick and that the dominant contribution to the soft X-ray emission is by photoionized matter (even if it is still unclear whether collisionally ionized matter may contribute as well). We also studied three bright X-ray sources that are in the field of NGC 5643. The ULX NGC 5643 X-1 was confirmed to be very luminous, even if more than a factor 2 fainter than in 2003. We then provided the first high-quality spectrum of the cluster of galaxies Abell 3602. The last source, CXOJ143244.5-442020, is likely an unobscured AGN, possibly belonging to Abell 3602.
ISSN:0004-6361
1432-0746
DOI:10.1051/0004-6361/201321293