Strong Absorption-line Systems at Low Redshift: MgII and Damped Lyman Alpha

Details Strong Absorption-line Systems at Low Redshift: MgII and Damped Lyman Alpha Strong Absorption-line Systems at Low Redshift: MgII and Damped Lyman Alpha

2002-11-13

arxiv.org/abs/astro-ph/0211295v1

Astronomy and Astrophysics

Astrophysics

6 pages, 4 figures. To appear in the proceedings for "The IGM/Galaxy Connection" conference held in Boulder, Colorado, August

Scientific paper

We detail a powerful indirect method for the study of damped Lyman alpha systems (DLAs) at low redshift. We increase the probability of finding a low-redshift DLA to nearly 50% by targeting QSOs that are known to have strong low-redshift MgII and FeII absorption lines in their spectra. We are using Sloan Digital Sky Survey QSO spectra complemented by a survey we are conducting at the MMT to study the metal-line systems. The Hubble Space Telescope is being used to confirm low-redshift DLAs. In addition, we are imaging low-redshift DLA galaxies with several ground-based telescopes to directly study their environments.

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