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Title

The star formation history of the Hubble sequence: spatially resolved colour distributions of intermediate-redshift galaxies in the Hubble Deep Field

Author(s)

Abraham, Roberto G.;  Ellis, Richard S.;  Fabian, Andrew C.;  Tanvir, Nial R.;  Glazebrook, Karl

Abstract

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 colour data to the predictions of evolutionary synthesis models. Given some simplifying assumptions, we demonstrate how our technique is capable of probing the evolutionary history of high-redshift systems, noting the specific advantage of observing galaxies at an epoch closer to the time of their formation. We quantify the relative age, dispersion in age, on-going star formation rate and star formation history of distinct components. We explicitly test for the presence of dust and quantify its effect on our conclusions. To demonstrate the potential of the method, we study the spirals and ellipticals in the near-complete sample of 32 I814<21.9 mag galaxies with z∼0.5 studied by Bouwens, Broadhurst & Silk. The dispersion of the internal colours of a sample of 0.4

Publication type

Journal article

Source

Monthly Notices of the Royal Astronomical Society, Vol. 303, no. 4 (Mar 1999), pp. 641-658

Publication year

1999

Keyword(s)

Bulges;  Cosmology;  Counts;  Elliptical;  Evolution;  Faint galaxies;  Formation;  Galaxies;  Keck;  Lenticular;  Luminosity function;  Magnitude relation;  Observations;  Photometry;  Population;  Spectroscopy;  Spiral galaxies;  Stars;  Stellar

Publisher

Wiley-Blackwell Publishing

ISSN

0035-8711

Publisher URL

http://dx.doi.org/10.1046/j.1365-8711.1999.02059.x

Copyright

Copyright © 1999 Royal Astronomical Society. The accepted manuscript of this paper is reproduced here in accordance with the copyright policy of the publisher. The definitive publication is available at www.interscience.wiley.com.

Full text

Peer reviewed