Supernova Evolution and its Impact on Cosmological Measurements

Details Supernova Evolution and its Impact on Cosmological Measurements Supernova Evolution and its Impact on Cosmological Measurements

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...197.8112n&link_type=abstract

American Astronomical Society, 197th AAS Meeting, #81.12; Bulletin of the American Astronomical Society, Vol. 32, p.1539

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Recently two independent research groups have presented compelling evidence for an accelerating universe from the observation of high-redshift Type Ia supernovae. These findings have such important ramifications for cosmology that every effort must be made to throughly test the calibrated standard candles on which they are based. Future research in cosmology may be carried out using redshift-luminosity distance measurements of Type II supernova. Here we present recent theoretical studies of the effects of evolution on the cosmological measurements for both Type Ia and II supernovae through spectrum synthesis calculations. We propose specific measurements that will allow us to constrain these effects. We acknowledge support from NASA LTSA S-92522-F and by the Director, Office of Science under U.S. Department of Energy Contract No. DE-AC03-76SF00098.

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