The Evolution of the Mass--to--Light Ratio of Spiral Galaxies

Details The Evolution of the Mass--to--Light Ratio of Spiral Galaxies The Evolution of the Mass--to--Light Ratio of Spiral Galaxies

Jul 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999hst..prop.8373g&link_type=abstract

HST Proposal ID #8373

Physics

Hst Proposal Id #8373 Galaxy Structure And Dynamics

Scientific paper

We propose to study the M/L ratio of spiral galaxies up to a redshift of 1/3, using the Tully--Fisher relation. That goal will be achieved by access to HST archival data, which will provide a target list of galaxies to be observed with the upgraded Arecibo telescope at 21 cm. HST images are of paramount importance in the project, as for redshifts higher than 0.1 it is impossible to obtain sufficiently accurate estimates of galaxy morphology and disk inclination with ground--based images. We have cross--referenced the HST data base with catalogs of galaxy redshifts and conclude that a sample of nearly 100 target galaxies suitable for this study can be obtained using the HST archives.

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