An Ultraviolet Spectroscopic Survey of Star-Forming Galaxies in the Local Universe

Details An Ultraviolet Spectroscopic Survey of Star-Forming Galaxies in the Local Universe An Ultraviolet Spectroscopic Survey of Star-Forming Galaxies in the Local Universe

Jul 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001hst..prop.9036l&link_type=abstract

HST Proposal ID #9036

Computer Science

Hst Proposal Id #9036 Galaxies

Scientific paper

We propose a comprehensive STIS ultraviolet spectroscopic survey of star-forming galaxies in the local universe. The sample covers a broad range of morphologies, chemical composition, and luminosity. The observations will provide spectral coverage between 1200 and 3100 Angstrom, at a resolution of 100 to 200 kms and S/N of about 30. The data set will allow us to document and quantify the effects of massive stars on the interstellar medium and to infer implications for the evolution of the host galaxies. Specific issues to be addressed are: {i} the relation of interstellar- line profiles to gravity and macroturbulence, and indications for large-scale outflows of the cool gas; {ii} the search for systematic trends of interstellar-line strengths with metallicity, with the goal of calibrating a new metallicity indicator; {iii} the properties of the low- and high- ionization absorption lines of the interstellar medium and their relation to the X-ray emitting gas; {iv} the properties of dust obscuration in star-forming galaxies and its consequences for deriving star-formation rates; {v} studying the star-formation histories and relating the stellar properties to those of the interstellar medium. This data set, while fundamental in its own right, will also be significant as a template for the restframe-ultraviolet of high-z galaxies. We will entirely waive our proprietary rights to give the community immediate access to the data.

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