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The Central Regions of Galaxies Hosting LINERs as Viewed by Chandra

Published online by Cambridge University Press:  12 May 2006

H. Flohic ,
M. Eracleous ,
G. Chartas ,
J. Shields  and
E. Moran
H. Flohic
Affiliation:
Dept. of Astronomy & Astrophysics, Penn. State University, University Park, PA 16802
M. Eracleous
Affiliation:
Dept. of Astronomy & Astrophysics, Penn. State University, University Park, PA 16802
G. Chartas
Affiliation:
Dept. of Astronomy & Astrophysics, Penn. State University, University Park, PA 16802
J. Shields
Affiliation:
Dept. of Physics & Astronomy, Ohio University, Athens, OH 45701
E. Moran
Affiliation:
Astronomy Dept., Van Vleck Observatory, Wesleyan University, Middletiwn, CT 06459
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Abstract

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We have used Chandra archival observations of 19 galaxies hosting LINERs to explore the morphology and source population of their inner kiloparsec. Our goal was, in general, to determine the power source behind their nuclear X-ray emission and, in particular, to investigate the presence of an AGN. We find an AGN in 12 of the 19 galaxies in the sample. We also find that diffuse, thermal emission is common with properties very similar to what is found in normal galaxies. In 10 out of the 19 galaxies, the diffuce emission dominates the nuclear X-ray power. The X-ray point-source populations were studied by producing cumulative luminosity functions and their properties are also similar to what is found in normal galaxies.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Symposium S230: Populations of High Energy Sources in Galaxies , August 2005 , pp. 235 - 236
Copyright
2006 International Astronomical Union