The sizes of high-redshift galaxies in the Great Observatories Origins Deep Survey

Details The sizes of high-redshift galaxies in the Great Observatories Origins Deep Survey The sizes of high-redshift galaxies in the Great Observatories Origins Deep Survey

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.3206f&link_type=abstract

American Astronomical Society, 201st AAS Meeting, #32.06; Bulletin of the American Astronomical Society, Vol. 34, p.1154

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Scientific paper

Hubble Space Telescope ACS images of color-selected high-redshift galaxies are used to examine the size distribution of galaxies as a function of redshift at lookback times t > 10 Gyr. Observations consist of images taken in the F435W (B), F606W (V), F775W (i) , and F850LP (z) filters to depths of roughly AB = 26 mag in the z band. The images have a resolution of approximately 0.1 arcsec, providing a resolution better than 1 kpc at any redshift for a reasonable range of cosmological parameters. The observations are used to test whether galaxy sizes at high redshifts evolve as H-1(z), as expected if the sizes of the star-forming portions of galaxies follow the evolution in the virial radius of dark-matter halos.

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