extinction.Fitzpatrick99¶
-
class
extinction.
Fitzpatrick99
¶ Fitzpatrick (1999) dust extinction function for arbitrary R_V.
An instance of this class is a callable that can be used as
f(wave, a_v)
wherewave
is a 1-d array of wavelengths anda_v
is a scalar value.Parameters: - r_v : float, optional
R_V value. Default is 3.1.
Examples
Create a callable that gives the extinction law for a given
r_v
and use it:>>> f = Fitzpatrick99(3.1)
>>> f(np.array([3000., 4000.]), 1.) array([ 1.79939955, 1.42338583])
-
__init__
()¶ x.__init__(…) initializes x; see help(type(x)) for signature
Attributes
r_v