Calibrating Cosmological Chronometers: White Dwarf Masses

Details Calibrating Cosmological Chronometers: White Dwarf Masses Calibrating Cosmological Chronometers: White Dwarf Masses

Jul 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006hst..prop10928s&link_type=abstract

HST Proposal ID #10928. Cycle 15

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Scientific paper

We propose to use HST/FGS1R to determine White Dwarf WD masses. The unmatched resolving power of HST/FGS1R will be utilized to follow up four selected WD binary pairs. This high precision obtained with HST/FGS1R simply cannot be equaled by any ground based technique. This proposed effort complements that done by CoI Nelan in which a sample of WDs is being observed with HST/FGS1R. This proposal will dramatically increase the number of WDs for which dynamical mass measurements are possible, enabling a better calibration of the WD mass-radius relation, cooling curves, initial to final mass relations, and ultimately giving important clues to the star formation history of our Galaxy and the age of its disk as well as in other galaxies. This project is part of Subasavage's PhD thesis work at Georgia State University.

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