Modeling Sub-Chandrasekhar Type Ia Supernovae

Details Modeling Sub-Chandrasekhar Type Ia Supernovae Modeling Sub-Chandrasekhar Type Ia Supernovae

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aspc..444...15f&link_type=abstract

5th international conference of numerical modeling of space plasma flows (astronum 2010). Proceedings of a 5th international con

Other

1

Scientific paper

The explosion of sub-Chandrasekhar-mass white dwarfs via the double detonation scenario is a potential explanation for Type Ia supernovae. In this scenario, a surface detonation in a helium layer initiates a detonation in the underlying carbon/oxygen core leading to an explosion of the whole star. To judge how well this theoretical model reproduces observations in comparison to other scenarios, detailed numerical simulations and the calculation of synthetic spectra and light curves are necessary. However, solving the reactive Euler equations for explosive nuclear burning in full star simulations is challenging because of the very wide range of scales that are involved: from the white dwarf radius of several thousand kilometers down to the carbon burning length scale that can be as small as 0.1 mm. Therefore, we use approximate schemes for nuclear burning in our hydrodynamic simulations that treat the detonations as reactive discontinuities, propagate them at the correct speed and release an approximately correct amount of energy behind the front. More accurate nucleosynthesis is determined afterwards in a post-processing step from the density and temperature trajectories of Lagrangian tracer particles that we passively advect with the flow in the hydrodynamic simulations. Here, we present details of our burning scheme and discuss simulation results.

Affiliated with

Also associated with

No associations

Rating

Modeling Sub-Chandrasekhar 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 Modeling Sub-Chandrasekhar Type Ia Supernovae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modeling Sub-Chandrasekhar Type Ia Supernovae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1650141