The bimodality of type Ia Supernovae

Details The bimodality of type Ia Supernovae The bimodality of type Ia Supernovae

2007-04-06

arxiv.org/abs/0704.0877v2

AIP Conf.Proc.937:293-297,2007

Astronomy and Astrophysics

Astrophysics

5 pages, to appear in the AIP conference proceedings of "Supernova 1987A: 20 Years after Supernovae and Gamma-Ray Bursters", F

Scientific paper

10.1063/1.2803580

We comment on the presence of a bimodality in the distribution of delay time between the formation of the progenitors and their explosion as type Ia SNe. Two "flavors" of such bimodality are present in the literature: a "weak" bimodality, in which type Ia SNe must explode from both young and old progenitors, and a "strong" bimodality, in which about half of the systems explode within 10^8 years from formation. The "weak" bimodality is observationally based on the dependence of the rates with the host galaxy SFR, while the "strong" one on the different rates in radio-loud and radio-quiet early-type galaxies. We review the evidence for these bimodalities. Finally, we estimate the fraction of SNe which are missed by optical and near-IR searches because of dust extinction in massive starbursts.

Affiliated with

Also associated with

No associations

Rating

The bimodality of type Ia Supernovae 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 The bimodality of type Ia Supernovae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The bimodality of type Ia Supernovae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-699802