vice.yields.ccsne.engines.E16.slope

Type : float [default : 0.283]

The slope of the line in \(\mu_4-M_4\mu_4\) space dividing progenitors which explode and collapse. Ertl et al. (2016) [1] argue that the quantities \(M_4\) and \(\mu_4\) can predict whether or not a massive star will produce a core collapse supernova based on the following criterion with only a few exceptions (~1 - 2.5%):

\[\mu_4 \leq a M_4 \mu_4 + b\]

where this attribute encodes the value of \(a\).

Example Code

>>> from vice.yields.ccsne.engines import E16
>>> E16.slope
0.283
>>> E16.slope = 0.3
>>> E16.slope
0.3
>>> E16.slope = 0.25
>>> E16.slope
0.25

[1]

Ertl et al. (2016), ApJ, 818, 124