Composition of Gas in Individual Interstellar Clouds -- Cycle 0

Details Composition of Gas in Individual Interstellar Clouds -- Cycle 0 Composition of Gas in Individual Interstellar Clouds -- Cycle 0

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990hst..prop.1071o&link_type=abstract

HST Proposal ID #1071

Computer Science

Hst Proposal Id #1071

Scientific paper

Column densities of interstellar atoms of some ten atomic species will be measured in the line of sight to 27 early-type stars, using the High-Resolution Spectrograph to obtain precise measures in the ultraviolet with highest spectral resolution. These data will be analyzed to determine relative abundances in the several individual clouds present along each line of sight, and thus to determine how the composition of the gas in such clouds varies with cloud parameters such as H column density, velocity, ionization level and distance z from the galactic plane. This information should help to clarify the equilibrium between gas and grains,--i.e., how the gas condenses on the grains and how the grains are destroyed by a variety of phenomena occurring in interstellar clouds.

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