Modelling stellar populations at high redshift
arXiv:1106.0317 · doi:10.1017/S174392131102268X
Abstract
Stellar populations carry information about the formation of galaxies and their evolution up to the present epoch. A wealth of observational data are available nowadays, which are analysed with stellar population models in order to obtain key properties such as ages, star formation histories, stellar masses. Differences in the models and/or in the assumptions regarding the star formation history affect the derived properties as much as differences in the data. I shall review the interpretation of high-redshift galaxy data from a model perspective. While data quality dominates galaxy analysis at the highest possible redshifts (z>5), population modelling effects play the major part at lower redshifts. In particular, I discuss the cases of both star-forming galaxies at the peak of the cosmic star formation history as well as passive galaxies at redshift below 1 that are often used as cosmological probes. Remarks on the bridge between low and high-z massive galaxies conclude the contribution.
7 pages, 7 figures, invited review at the IAU Symposium 277 "Tracing the Ancestry of Galaxies (on the land of our ancestors)", Ouagadougou (Burkina Faso), December 2010, Editors: Claude Carignan, Francoise Combes, Ken Freeman
References in corpus (9)
- Evidence for TP-AGB stars in high redshift galaxies, and their effect on deriving stellar population parameters
- Early star-forming galaxies and the reionization of the Universe
- Modeling the color evolution of luminous red galaxies - improvements with empirical stellar spectra
- The 2dF-SDSS LRG and QSO survey: Evolution of the Luminosity Function of Luminous Red Galaxies to z=0.6
- Physical Properties of Galaxies from z=2-4
- Luminosity Function Constraints on the Evolution of Massive Red Galaxies Since z~0.9
- The redshift and nature of AzTEC/COSMOS 1: A starburst galaxy at z=4.6
- The inner structure of very massive elliptical galaxies: implications for the inside-out formation mechanism of z~2 galaxies
- Why Galaxies Care about AGB Stars. Modelling Galaxies