Dark Matter Admixed Type Ia Supernovae
  We perform two-dimensional hydrodynamic simulations for the thermonuclear
explosion of Chandrasekhar-mass white dwarfs with dark matter (DM) cores in
Newtonian gravity. We include a 19-isotope nuclear reaction network and make
use of the pure turbulent deflagration model as the explosion mechanism in our
simulations. Our numerical results show that the general properties of the
explosion depend quite sensitively on the mass of the DM core M$_{{\rm DM}}$: a
larger M$_{{\rm DM}}$ generally leads to a weaker explosion and a lower mass of
synthesized iron-peaked elements. In particular, the total mass of $^{56}$Ni
produced can drop from about 0.3 to 0.03 $M_{\odot}$ as M$_{{\rm DM}}$
increases from 0.01 to 0.03 $M_{\odot}$. We have also constructed the
bolometric light curves obtained from our simulations and found that our
results match well with the observational data of sub-luminous Type-Ia
supernovae.
