Late Light Curves of Normally-luminous Type Ia Supernovae.

Details Late Light Curves of Normally-luminous Type Ia Supernovae. Late Light Curves of Normally-luminous Type Ia Supernovae.

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.5406l&link_type=abstract

American Astronomical Society Meeting 207, #54.06; Bulletin of the American Astronomical Society, Vol. 37, p.1238

Mathematics

Logic

Scientific paper

The use of Type Ia supernovae (SNe Ia) as cosmological tools has reinforced the need to better understand these objects and their light curves. The light curves of Type Ia supernovae are powered by the products of the 56Ni and 56Co decay, with the late time light curve being powered specifically by the deposition of positron kinetic energy (from the 56Co decay) into the supernova ejecta. Previous studies of the late light curves of SNe Ia have modeled two different treatments of the positron energy deposition. One treatment being the complete and instantaneous trapping of all positrons in radiation transport and the other being energy deposition modeling transporting the positrons through the ejecta and allowing a fraction of them to escape. The latter technique resulting from the idea that SNe Ia could be the source of positrons contributing to the Galactic 511 keV line emission. One way to attempt to distinguish between the models is studying the shape of the late light curves. We present the late light curves of seven ``normal" SNe Ia, with photometry obtained by template image subtraction, and discuss their implications for the treatment of positrons in SNe Ia models.

Affiliated with

Also associated with

No associations

Rating

Late Light Curves of Normally-luminous 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 Late Light Curves of Normally-luminous Type Ia Supernovae., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Late Light Curves of Normally-luminous Type Ia Supernovae. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1279806