Mathematics – Logic
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.2205s&link_type=abstract
American Astronomical Society Meeting 207, #22.05; Bulletin of the American Astronomical Society, Vol. 37, p.1193
Mathematics
Logic
Scientific paper
We present far-UV (1500Å) imaging of the Ultra Deep Field (UDF) taken with the Solar Blind Channel of the Advanced Camera for Surveys (ACS/SBC) on HST. Combined with data from a previous campaign covering the Hubble Deep Field North (HDF-N), we detect more than 200 galaxies over 12 arcmin2 with Far-UV mags to m(AB)=29. The derived number counts extend nearly four magnitudes fainter than the GALEX ultra-deep fields. We use Spitzer infrared photometry from the GOODS Legacy survey to examine the F(IR)/F(UV) vs. β relation. We find that this relation, although derived with a local sample, holds for starburst galaxies at moderate redshift between 0.3-0.9. We detect about half of all morphologically selected ellipticals with z<0.8, indicating significant ongoing star-formation at z<1 in this population. Furthermore, our detection rate of ellipticals is correlated with their dispersion in optical color across the galaxy with nearly all of the "blue core" ellipticals (δ (V-I)>0.05) detected in the far-UV.
Brown Ted M.
Chary Ranga Ram
Colbert James W.
Conselice Chris
de Mello Duilia F.
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