Effects of Differential Line Blocking on Intrinsic Colors and Inferred Extinction of Type Ia Supernovae

Details Effects of Differential Line Blocking on Intrinsic Colors and Inferred Extinction of Type Ia Supernovae Effects of Differential Line Blocking on Intrinsic Colors and Inferred Extinction of Type Ia Supernovae

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21642803b&link_type=abstract

American Astronomical Society, AAS Meeting #216, #428.03; Bulletin of the American Astronomical Society, Vol. 41, p.841

Astronomy and Astrophysics

Astronomy

Scientific paper

Observed and adopted intrinsic colors of Type Ia supernovae have been used to make inferences about the extinction. For example, it has been suggested that two spectroscopic groups, "high velocity” and "normal", have different extinction laws, with RV 1.6 and 2.4, respectively. However, the intrinsic colors of the two groups were assumed to be the same. We use the parameterized supernova spectrum-synthesis code SYNOW to investigate the extent to which differences in line blocking between the two groups produce different intrinsic colors and therefore affect the inferred extinction laws.

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