Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-06-20
Astronomy and Astrophysics
Astrophysics
18 pages, 5 figures, to be published in ApJL
Scientific paper
10.1086/322933
The evolution of type Ia supernova binary system progenitors is highly uncertain. Several evolutionary models predict that the accretion of mass onto the white dwarf is accompanied by mass ejection from the binary in the form of a powerful wind, but very few observations have been made during the initial phase of formation of supernovae remnants, when the interaction of supernova ejecta with presupernova wind could be tested. Here we present hydrodynamical simulations of supernova ejecta interaction with an ambient medium modified by presupernova wind. The structure of the ambient medium when the supernova explodes is very sensitive to the details of wind history, and the evolution of the supernova remnant can be affected during several thousand years. We have found that the forward shock expansion parameter is a good tool for discriminating between several wind models. The evolution of the supernova remnant in the presence of an ambient medium modified by interaction with pre-supernova wind cannot be described by a similarity solution. We also rule out simple models based on a circumstellar medium that merges smoothly with a uniform density ambient medium.
Badenes Carles
Bravo Eduardo
No associations
LandOfFree
The Imprint of Presupernova Evolution on Supernovae Remnants 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 Imprint of Presupernova Evolution on Supernovae Remnants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Imprint of Presupernova Evolution on Supernovae Remnants will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-517202