The Star Formation History of the Hubble Sequence: Spatially Resolved Colour Distributions of Intermediate Redshift Galaxies in the Hubble Deep Field

Astronomy and Astrophysics – Astrophysics

Scientific paper

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8 colour postscript figures plus LaTeX source; submitted to MNRAS. Uses the mnras.sty LaTeX style file

Scientific paper

10.1046/j.1365-8711.1999.02059.x

We analyse the spatially resolved colours of distant galaxies of known redshift in the Hubble Deep Field, using a new technique based on matching resolved four-band internal colour data to the predictions of evolutionary synthesis models. We quantify the relative age, dispersion in age, ongoing star-formation rate, star-formation history, and dust content of these galaxies. To demonstrate the potential of the method, we study the near-complete sample of 32 I<21.9 mag galaxies with ~ 0.5 studied by Bouwens et al (1997). The dispersion of the internal colours of a sample of 0.4

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