A morphological study of EROs and sub-mm sources in a unique deep field

Details A morphological study of EROs and sub-mm sources in a unique deep field A morphological study of EROs and sub-mm sources in a unique deep field

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003hst..prop.9761a&link_type=abstract

HST Proposal ID #9761

Mathematics

Logic

Hst Proposal Id #9761 Cosmology

Scientific paper

We propose a deep I-band ACS WFC survey in a unique deep field, focussing on two classes of high-redshift galaxy which are believed to be the progenitors of today's massive ellipticals: {1} our recently-studied deep sample of 158 "extremely red objects" {EROs}; {2} a complete flux-limited sample of 14 SCUBA sub-mm sources, which may represent the formation episode of the most massive galaxies at high redshift. The basic goals are to go deep enough to obtain morphological parameters for this large sample {e.g. scale-lengths and shape parameters} to investigate whether, for example, the EROs have sizes comparable to present day elliptical galaxies. Likewise, what are the typical size scales and morphologies for the SCUBA sources? Can we visualise their formation from smaller fragments? We can achieve both goals in a single contiguous field with a mosaic of 8 deep ACS WFC fields, requiring 16 orbits.

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