Interstellar Reddening of Type Ia Supernovae

Details Interstellar Reddening of Type Ia Supernovae Interstellar Reddening of Type Ia Supernovae

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006padeu..17..195s&link_type=abstract

In: Proceedings of the 4th Workshop of Young Researchers in Astronomy & Astrophysics; Budapest, Hungary, 11-13 January, 2006; Pu

Astronomy and Astrophysics

Astrophysics

Scientific paper

We re-investigate the Lira-Phillips relation of Type Ia supernovae and its use for determination of reddening of individual SNe Ia. We use a more recent, more extensive dataset of SNe Ia with negligible reddening, and attempt to refine the prediction of the intrinsic B-V color index. We find that the Lira-Phillips relation is valid, but the dispersion of the intrinsic B-V colors is substantial. The present data may suggest slightly redder intrinsic colors, thus, the previously calculated total extinctions (and the corresponding distance moduli) should be decreased by ˜ 0.19 mag.

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