Issue |
A&A
Volume 389, Number 3, July III 2002
|
|
---|---|---|
Page(s) | 761 - 778 | |
Section | Cosmology (including clusters of galaxies) | |
DOI | https://doi.org/10.1051/0004-6361:20020446 | |
Published online | 01 July 2002 |
Colour evolution of disk galaxy models from
to
*
Astronomisches Institut der Universität Basel, Venusstrasse 7, 4102 Binningen, Switzerland e-mail: samland@astro.unibas.ch
Corresponding author: M. Samland, samland@astro.unibas.ch
Received:
24
December
2001
Accepted:
13
March
2002
We calculate synthetic UBVRIJHKLM images, integrated
spectra and colours for the disk galaxy formation models of
Samland & Gerhard ([CITE]), from redshift to
. Two models are
considered, an accretion model based on ΛCDM structure
formation simulations, and a classical collapse model in a dark
matter halo. Both models provide the star formation history and
dynamics of the baryonic component within a three-dimensional
chemo-dynamical description. To convert to spectra and colours, we
use the latest, metallicity-calibrated spectral library of
Westera et al. ([CITE]), including internal absorption. As a first
application, we compare the derived colours with Hubble Deep Field
North bulge colours and find good agreement. With our model, we
disentangle metallicity effects and absorption effects on the
integrated colours, and find that absorption effects are dominant
for
. Furthermore, we confirm the quality of mK as a
mass tracer, and find indications for a correlation between
and metallicity gradients.
Key words: galaxies: abundances / galaxies: evolution / galaxies: photometry / galaxies: spiral / ISM: dust, extinction
© ESO, 2002
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