Reconciling the SBF and SNIa Distances Scales: Galaxy Colors

Details Reconciling the SBF and SNIa Distances Scales: Galaxy Colors Reconciling the SBF and SNIa Distances Scales: Galaxy Colors

Feb 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000noao.prop..275a&link_type=abstract

NOAO Proposal ID #2000A-0275

Computer Science

Scientific paper

We request WIYN 2-hour queue time to obtain precise VI colors of galaxies being observed by the Hubble Space Telescope. These colors complement the WFPC2 images being taken in Cycle 8 and will be used to calibrate the absolute brightness of each galaxy's surface brightness fluctuation (SBF) measurement in order to obtain its distance. Ultimately, these distances will be used to reconcile the apparent 15-30% discrepancy between the type Ia supernovae and SBF distance scales.

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