Morphologies of AGN host galaxies using HST/ACS in the CDFS-GOODS field

Details Morphologies of AGN host galaxies using HST/ACS in the CDFS-GOODS field Morphologies of AGN host galaxies using HST/ACS in the CDFS-GOODS field

2007-07-11

arxiv.org/abs/0707.1613v2

Astrophys.Space Sci.312:63-77,2007

Astronomy and Astrophysics

Astrophysics

pdflatex, accepted in ApSS. revisions in text

Scientific paper

10.1007/s10509-007-9648-8

Using HST/ACS images in four bands F435W, F606W, F775W and F850LP, we identify optical counterparts to the X-ray sources in the Chandra Deep Field South in the GOODS South field. A detailed study has been made of these sources to study their morphological types. We use methods like decomposition of galaxy luminosity profiles, color maps and visual inspection of 192 galaxies which are identified as possible optical counterparts of Chandra X-ray sources in the CDFS-GOODS field. We find that most moderate luminosity AGN hosts are bulge dominated in the redshift range (z \approx 0.4-1.3), but not merging/interacting galaxies. This implies probable fueling of the moderate luminosity AGN by mechanisms other than those merger driven.

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