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arXiv · astro-ph/0211295

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

Daniel B. Nestor·Sandhya Rao·David Turnshek
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Abstract

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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Daniel B. Nestor, Sandhya Rao, David Turnshek. 2002-11-13. Strong Absorption-line Systems at Low Redshift: MgII and Damped Lyman Alpha. https://doi.org/10.1007/978-94-010-0115-1_4

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