The Detectability of Young Galaxies
Abstract
Possibilities for detecting primaeval galaxies are reviewed. The best prospects for detection are giant elliptical galaxies, in a stage of rapid star formation about 1010 years ago. These primaeval galaxies would probably be quasi-stellar in angular size. They could have easily detectable magnitudes if the most luminous stage occurs at red shifts z lesssim 5, and if internal dust does not absorb most of the ultraviolet-visual light. Although it is not clear whether very young giant elliptical galaxies have yet been found, excess populations of blue galaxies in clusters (discovered by Butcher & Oemler) and in the field (discovered by Kron) are almost certainly in early stages of active star formation.
- Publication:
-
Philosophical Transactions of the Royal Society of London Series A
- Pub Date:
- March 1980
- DOI:
- 10.1098/rsta.1980.0173
- Bibcode:
- 1980RSPTA.296..303T
- Keywords:
-
- Cosmology;
- Elliptical Galaxies;
- Galactic Evolution;
- Astronomical Models;
- Red Shift;
- Stellar Evolution;
- Astrophysics;
- COSMOLOGY;
- ELLIPTICAL GALAXIES;
- GALACTIC EVOLUTION;
- ASTRONOMICAL MODELS;
- RED SHIFT;
- STELLAR EVOLUTION