In this review I will describe a number of recent advances in extragalactic astronomy. First of all I will describe our current best estimates of the star formation history of the Universe. Then I will describe measurements of local galaxies and their stellar populations, concentrating on measurements of the luminosity functions and stellar population compositions of the different kinds of galaxies. Finally, I will investigate the relationship between these two sets of results. The ultimate aim is to tell at what stage in the history of the Universe the different stars seen in the local galaxies formed. At present much is known but there are significant uncertainties and I will highlight some prospects for the future.
- Pub Date:
- April 2003
- review on extragalactic astronomy to appear in "Research Developments in Astronomy", published by Research Signpost, Trivandrum. Typos corrected and discussion of 3 new papers added. GRB section updated to present (8/03)