Evolution of Lyman-Alpha and CIV Absorpton Systems: Cycle 1 Observations
Abstract
The evolution of Lyman-alpha and CIV absorption line systems in quasar spectra will be investigated using 21 optically bright quasars with a wide range of redshifts; the wavelength at which the Lyman cutoff appears will also be determined. All of the prominent emission and absorption lines will be measured. ST observations are required because the spectral features of interest are in the far ultraviolet and are inaccessible from the ground.
- Publication:
-
HST Proposal
- Pub Date:
- December 1990
- Bibcode:
- 1990hst..prop.3221B