Angular sizes of the faint blue galaxies

Details Angular sizes of the faint blue galaxies Angular sizes of the faint blue galaxies

Jun 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997mnras.288..200r&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 288, Issue 1, pp. 200-220.

Astronomy and Astrophysics

Astronomy

15

Galaxies: Distances And Redshifts, Galaxies: Evolution, Galaxies: Formation, Galaxies: Fundamental Parameters, Galaxies: Spiral

Scientific paper

We investigate the angular sizes, morphologies and B-I colours of the 21≮I≮24 galaxies imaged on 10 Wide Field Planetary Camera fields. The number of galaxies with bluer colours (B-I<2.0) and moderately large angular sizes exceeds non-evolving predictions by a factor of ~2, but is consistent with pure L* evolution (PLE) models. There is also an excess of galaxies of smaller angular size with very blue B-I colours, suggesting the presence of a lower redshift starburst dwarf galaxy population, with a steep luminosity function. The bluest (B-I<1.2) subsample, consisting of 57 galaxies at 21

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