vice.milkyway.tau_ia
====================

Type : real number

Default: 1.5

The e-folding timescale in Gyr of an exponentially decaying delay-time
distribution in type Ia supernovae. Default value is adopted from
Weinberg, Andrews & Freudenburg (2017) [1]_.

.. note::

	Because this is an e-folding timescale, it only matters when the
	attribute ``RIa`` == "exp".

.. seealso:: vice.milkyway.RIa

Example Code
------------
>>> import vice
>>> mw = vice.milkyway(name = "example")
>>> mw.tau_ia = 1.0
>>> mw.tau_ia = 1.5
>>> mw.tau_ia = 2.0

.. [1] Weinberg, Andrews & Freudenburg (2017), ApJ, 837, 183