Secondary Parameters of Type Ia Supernova Light Curves

Details Secondary Parameters of Type Ia Supernova Light Curves Secondary Parameters of Type Ia Supernova Light Curves

2009-12-11

arxiv.org/abs/0912.2231v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

32 pages, 9 Figures, ApJ accepted

Scientific paper

High-quality observations of $B$ and $V$ light curves obtained at Las Campanas Observatory for local Type Ia Supernovae (SNe Ia) show clear evidence that SNe Ia with the same brightness decline or stretch may have systematic and independent deviations at times < 5 days before and at times > 30 days after maximum light. This suggests the existence of two independent secondary parameters which control the shape of SN Ia light curves in addition to the brightness decline relation. stretch. The differences are consistent in morphology of the time dependence and size with predictions by models within the delayed detonation scenario. The secondary parameters may reflect two independent physical effects caused by variations in the progenitor and accretion rates, and link the LC variations in shape with the intrinsic, absolute brightness.

Affiliated with

Also associated with

No associations

Rating

Secondary Parameters of Type Ia Supernova Light Curves does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Secondary Parameters of Type Ia Supernova Light Curves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Secondary Parameters of Type Ia Supernova Light Curves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-468293