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

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Table 2:

Conditions at core detonation initiation for all models.
Model	$t_{\rm ign}$ [s]	$T_{\rm 9,ign}$	$\rho_{\rm 8,ign}$	$z_{\rm ign}$ [km]	$\vert z_{\rm ign}\vert/R_{\rm core}$	$\Delta$ [km]
1	1.94	4.62	1.08	-1910	0.39	9.86
2	1.78	4.15	1.58	-1850	0.40	8.43
3	1.58	4.42	2.24	-1750	0.41	6.81
4	1.30	4.09	1.89	-1560	0.41	5.59
5	1.00	4.14	4.63	-1370	0.46	3.86
6	0.64	3.23	8.92	-1040	0.50	2.54

Notes. $t_{\rm ign}$ , $T_{\rm 9,ign}$ , $\rho_{\rm 8,ign}$ , and $z_{\rm ign}$ are the time, temperature in 10⁹ K, density in $10^8~\ensuremath{{\rm g}~{\rm cm}^{-3}}$ , and z coordinate at the ignition spot, respectively. $R_{\rm core}$ denotes the radius of the C/O-WD core and $\Delta$ the grid resolution, which is approximately 1/1000 of the WD radius.

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