AAS 201st Meeting, January, 2003
Session 123. Supernovae and Other Distance Indicators
Poster, Thursday, January 9, 2003, 9:20am-4:00pm, Exhibit Hall AB

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[123.08U] K-correction in type Ia Supernovae

M. Mora (Pontificia Universidad Catolica de Chile)

The maximum light magnitude of a Type Ia supernova can be used to calculate a distance modulus accurate to 0.15mag. With ground-based telescopes we can find and measure luminosity distances out to z=1.2. The accuracy of the luminosity distance depends critically on the estimated reddening and the accuracy of the K-corrections. In this project, we have developed tools to calculate K-corrections based on our CTIO atlas of spectrophotometry of nearby Type Ia supernovae. We have reproduced K-corrections in the B and V-bands for redshifts between z=0.005-0.45.

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Bulletin of the American Astronomical Society, 34, #4
© 2002. The American Astronomical Soceity.