77 citations · 77 across the 1 of their papers we have counts for
Showing 1998 · astro-phShow all
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astro-ph1998
Highly Ionized High Velocity Clouds
Kenneth R. Sembach, Blair D. Savage, Limin Lu +1
We have recently used the Hubble Space Telescope to study a pair of high velocity clouds in the direction of Mrk 509 that have unusual ionization properties. They exhibit strong CI…
astro-ph1998
The Metal Contents of Very Low Column Density Lyman-alpha Clouds: Implications for the Origin of Heavy Elements in the Intergalactic Medium
Limin Lu, Wallace L. W. Sargent, Thomas A. Barlow +1
We investigate the metal contents of Lyman-alpha clouds at 2.2<z<3.6 with 10^13.5<N(HI)<10^14 cm-2 using high resolution, high S/N spectra of 9 quasars obtained with the 10m Keck I…