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Probing High-Redshift Disks with Damped Lyman Alpha Systems | | Arthur M. Wolfe
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8 Sep 2000 | | Subject: | astro-ph | | Abstract: | Evidence is presented that the damped Lyman alpha absorption systems are the high-redshift (z > 3) progenitors of galaxy disks. I discuss kinematic evidence that the damped Lyman Alpha systems are rotating disks. I also discuss implications of the lack of metal-poor damped Lyman alpha systems with line width Delta v > 100 {kms}. I then present new evidence stemming from correlations between element-abundance ratios and [Fe/H], which connects damped systems to the thick stellar disk of the Galaxy. I discuss the connections between damped Lyman alpha systems and Lyman break galaxies, and how [CII] 158 micron emission from damped Lyman alpha systems discriminates among competing theories of galaxy formation. ~ | | Source: | arXiv, astro-ph/0009126 | | Services: | Forum | Review | PDF | Favorites | |
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