AAS 200th meeting, Albuquerque, NM, June 2002
Session 33. Gaseous Galaxy Halos and Edges of Disk Galaxies
Topical Session Oral, Tuesday, June 4, 2002, 8:30-10:00am, 10:45am-12:30pm, 2:00-3:30pm, 3:45-5:30pm, Ballroom A

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[33.12] FUSE Studies of Atomic and Molecular Gas in Halos

P. Richter (University of Wisconsin - Madison)

I will summarize recent FUSE and STIS absorption line measurements of atomic and molecular gas in the halos of galaxies. Studies of various neutral and ionized species, such as C I, N I, O I, Al II, Si II, P II, S II, Ar I, Fe II, as well as molecular hydrogen (H2), unveil a remarkable multi-phase structure of the Milky Way halo gas down to very small scales. Galactic halo clouds span a wide range range of metallicities, implying that various processes must be responsible for the presence of the intermediate- and high-velocity clouds in the halo of the Galaxy. I will discuss the implications of these results for our knowledge about the gaseous environment of the Milky Way and other galaxies from a more general perspective.

The author(s) of this abstract have provided an email address for comments about the abstract: richter@astro.wisc.edu

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Bulletin of the American Astronomical Society, 34
© 2002. The American Astronomical Soceity.