Double-detonation sub-Chandrasekhar supernovae: can minimum helium shell masses detonate the core?

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Table 1:

Parameters of our initial models.
Model	1	2	3	4	5	6
$M_{\rm tot}$	0.936	1.004	1.080	1.164	1.293	1.3885
$M_{\rm core}$	0.810	0.920	1.025	1.125	1.280	1.3850
$M_{\rm sh}$	0.126	0.084	0.055	0.039	0.013	0.0035
$\rho_{{\rm c},~7}$	1.45	2.4	4.15	7.9	28	140
$\rho_{{\rm b},~5}$	3.7	4.0	4.5	6.1	6.4	8.7

Notes. $\rho_{{\rm c},~7}$ denotes the central density in units of $10^7~\ensuremath{{\rm g}~{\rm cm}^{-3}}$ , $\rho_{{\rm b},~5}$ is the density at the base of the helium shell in units of $10^5~\ensuremath{{\rm g}~{\rm cm}^{-3}}$ . $M_{\rm tot}$ , $M_{\rm core}$ , and $M_{\rm sh}$ are the masses of the WD, the C/O core, and the helium shell, respectively. All masses are given in solar masses.

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