Cosmological distances from supernova photospheres

Details Cosmological distances from supernova photospheres Cosmological distances from supernova photospheres

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993phr...227..205w&link_type=abstract

Physics Reports, Volume 227, Issue 1-5, p. 205-221.

Physics

5

Scientific paper

At the foundation of the quest to discover the properties of our universe are reliable measurements of distance. We focus on the expanding photosphere method as applied to type II supernovae, indicating how its independent observational tests strengthen our understanding of and confidence in this probe. In keeping with the spirit of this conference, we illustrate some analogies between ``freeze-out'' of abundances in cosmological or explosive nucleosynthesis and the formation of the spectral luminosity of the supernova. The results of the first critical test of this method, measurement of the distance to supernova 1987A in the Large Magellanic Cloud, are summarized. Plans for use of the Hubble Space Telescope to contribute to an independent direct determination of the Hubble constant are outlined, and prospects for extensions to higher redshifts are discussed.

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