Mathematics – Logic
Scientific paper
Mar 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008msngr.131...30p&link_type=abstract
The Messenger, vol. 131, p. 30-34
Mathematics
Logic
1
Scientific paper
Type Ia supernovae are thought to be thermonuclear explosions of accreting white dwarfs that reach a critical mass limit. Despite their importance as cosmological distance indicators, the nature of their progenitors has remained controversial. Observations carried out by our team with VLT-UVES led us to the detection of circumstellar material in a normal Type Ia supernova. The expansion velocities, densities and dimensions of the circumstellar envelope indicate that this material was ejected from the system prior to the explosion. The relatively low expansion velocities appear to favour a progenitor system where a white dwarf accretes material from a companion star which is in the red-giant phase at the time of the explosion.
Benetti Stefano
Cappellaro Enrico
Chandra Poonam
Chevalier Roger
Crawford Ian
No associations
LandOfFree
Seeking for the Progenitors 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 Seeking for the Progenitors of Type Ia Supernovae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seeking for the Progenitors of Type Ia Supernovae will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-878863