High Redshift Analogues of Blue-Sequence E/S0 Galaxies

Details High Redshift Analogues of Blue-Sequence E/S0 Galaxies High Redshift Analogues of Blue-Sequence E/S0 Galaxies

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21541014c&link_type=abstract

American Astronomical Society, AAS Meeting #215, #410.14; Bulletin of the American Astronomical Society, Vol. 42, p.236

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Recent work at z=0 has demonstrated the possibility of disk regrowth in post-merger remnants by analyzing galaxies that are morphologically E/S0s, but fall onto the blue sequence in a color vs. stellar mass plot. We present preliminary results of our efforts to identify high redshift analogues. Using archival data from the COSMOS and MUSYC-ECDFS fields we have assembled a sample of E/S0 and later type galaxies, all with photometric redshifts, rest-frame colors, stellar masses and morphological classifications. We explore the optimal definition of blue-sequence E/S0s using different methods of parameter estimation in the color vs. stellar mass plot. Using this information, we have identified some galaxies that are candidates for disk regrowth.

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