Table 2
Parametric study of the parameter space Tosc × u0 with the conservative code HERACLES, for the case of a cold C+O white dwarf (upper table) and 0.01 M⊙ helium layer (lower table).
| u0 (kms-1) | 1000 | 500 | 400 | 300 | 200 | 100 | |
|
|
|||||||
| Tosc = 72ms | 1 | 2 | 3 | 4 | − | − | |
| Tosc = 36ms | 2 | 5 | 7 | 10 | − | − | |
| Tosc = 18ms | 4 | 13 | 17 | 34 | 67 | − | |
| Tosc = 9ms | 7 | 34 | 78 | 154 | 438 | ||
|
|
|||||||
| + MHe = 0.01 M⊙ | |||||||
|
|
|||||||
| δu (kms-1) | 1000 | 500 | 250 | 100 | 50 | 25 | |
|
|
|||||||
| Tosc = 72ms | 1 | 1 | 1 | 1 | − | − | |
| Tosc = 36ms | 2 | 1 | 1 | 3 | 5 | 20 | |
| Tosc = 18ms | 4 | 5 | 6 | 9 | 19 | 78 | |
| Tosc = 10ms | 7 | 34 | 35 | 47 | |||
Notes.Perturbations are initiated at the optimal radius (r0 = 350 km), corresponding to the maximum in Fig. 7. The period Tosc = 72 ms corresponds to a wavelength of λ0 = 0.5 RWD at the optimal radius of 350 km. Numbers in the table correspond to the number of shocks needed for detonation ignition.
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