Lyman Alpha Absorption: The Damped Systems
Abstract
Damped Lyα absorption systems are high column density gaseous objects that are detected in the spectra of background QUASARS on the basis of neutral hydrogen Lyα absorption lines broadened by radiation damping to large rest-frame equivalent widths. The damped Lyα absorption systems are of particular interest because (1) they can be identified to very large REDSHIFTS, (2) they dominate the mass d...
- Publication:
-
Encyclopedia of Astronomy and Astrophysics
- Pub Date:
- November 2000
- DOI:
- Bibcode:
- 2000eaa..bookE2141L
- Keywords:
-
- Cosmology;
- Cosmological Phenomena