Mathematics – Logic
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.0612c&link_type=abstract
American Astronomical Society, 201st AAS Meeting, #06.12; Bulletin of the American Astronomical Society, Vol. 34, p.1099
Mathematics
Logic
Scientific paper
We present realistic simulations of galaxies in the GOODS fields, especially AGN host galaxies, to determine the accuracy with which host galaxy properties can be measured through multi-color HST ACS images. In particular, we study the effect of dilution when galaxies are observed at increasing distance. Spatial resolution might bias the detection of emission from the central source (AGN) or its surrounding star formation regions, and the accuracy with which we can measure the host morphological and structural parameters. In extreme cases, the AGN contribution may completely dominate the total emission coming from a galaxy or on the other hand, a faint/partly obscured AGN can be completely dominated by the host disk emission. We simulate host galaxies of various spectral types and luminosities, to investigate the effects of limited spatial resolution on the observed AGN/starburst/host galaxy dominance and the accuracy with which we can recover the AGN host characteristics, with various fitting routines of these synthetic images.
Chatzichristou Eleni T.
Conselice Christopher J.
Grogin Norman
Koekemoer Anton M.
Urry Claudia Megan
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