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astro-ph2002
On the Origin of Nitrogen in Damped Ly-alpha Systems
R. B. C. Henry, Jason X. Prochaska
Recent measurements of nitrogen and alpha elements in over 20 damped Ly-alpha systems (DLA) are compared with similar measurements for numerous emission line objects and stars. It…
astro-ph2002
The Physics of Extragalactic Gas: One Argument for a Next Generation Space Telescope
Jason X. Prochaska
Observations of the Galactic ISM have had tremendous impact on our understanding of the physics of galactic gas and the processes of galaxy formation. Similar observations at z>2 r…