2004A&A...413...37B


Query : 2004A&A...413...37B

2004A&A...413...37B - Astronomy and Astrophysics, volume 413, 37-48 (2004/1-1)

Chemically consistent evolution of galaxies. II. Spectrophotometric evolution from zero to high redshift.

BICKER J., FRITZE-v.ALVENSLEBEN U., MOELLER C.S. and FRICKE K.J.

Abstract (from CDS):

The composite stellar populations of galaxies comprise stars of a wide range of metallicities. Subsolar metallicities become increasingly important, both in the local universe when going from early towards later galaxy types as well as for dwarf galaxies and for all types of galaxies towards higher redshifts. We present a new generation of chemically consistent evolutionary synthesis models for galaxies of various spectral types from E through Sd. The models follow the chemical enrichment of the ISM and take into account the increasing initial metallicity of successive stellar generations using recently published metallicity dependent stellar evolutionary isochrones, spectra and yields. Our first set of closed-box 1-zone models does not include any spatial resolution or dynamics. For a Salpeter initial mass function (IMF) the star formation rate (SFR) and its time evolution are shown to successfully parameterise spectral galaxy types E, functions for Johnson-Cousins U, B, V, RC, IC, as well as for HST broad band filters in the optical and Bessel & Brett's NIR J, H, K filter system, we calculate the luminosity and colour evolution of model galaxies over a Hubble time. Including a standard cosmological model (H0=65, Ω0=0.1) and the attenuation by intergalactic hydrogen we present evolutionary and cosmological corrections as well as apparent luminosities in various filters over the redshift range from z∼5 to the present for our galaxy types and compare to earlier models using single (=solar) metallicity input physics only. We also resent a first comparison of our cc models to HDF data. A more detailed comparison with Hubble Deep Field (HDF) and other deep field data and an analysis and interpretation of high redshift galaxies in terms of ages, metallicities, star formation histories and, galaxy types will be the subject of a forthcoming paper.

Abstract Copyright:

Journal keyword(s): galaxies: evolution - galaxies: stellar content - galaxies: photometry - galaxies: spectra - galaxies: redshifts - cosmology: observations

Status at CDS : Large table(s) of objects being ingested in VizieR.

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NGC 1560 GiG 04 32 49.087 +71 52 59.20   12.1       ~ 244 0
2 NGC 1832 G 05 12 03.3433348776 -15 41 16.021694220   12.2   11.07 11.8 ~ 230 1
3 NGC 3471 GiP 10 59 09.016 +61 31 49.63   13.0       ~ 118 0
4 NGC 4449 EmG 12 28 11.118 +44 05 36.81 10.11 9.98 9.64 9.45   ~ 1071 1
5 NAME Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1873 1
6 NGC 4889 EmG 13 00 08.097 +27 58 37.29 12.93 13.0 11.30 11.652 10.906 ~ 674 1
7 NGC 6643 G 18 19 46.370 +74 34 06.23   11.80       ~ 295 1
8 NAME HDF-S reg 22 32 56 -60 33.0           ~ 553 0

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2022.05.27-09:23:05

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