Gordon03_SMCBar¶
- class beast.physicsmodel.dust.extinction.Gordon03_SMCBar[source]¶
Bases:
ExtinctionLaw
Gordon03 SMCBar extinction curve
Average of 4 SMCBar extinction curves from Gordon et al. 2003 (ApJ, 594, 279).
Note that Rv has no impact on this law: according to Gordon et al (2003), the average value of Rv is fixed to 2.74 +/- 0.13
Methods Summary
function
(lamb[, Av, Rv, Alambda])Gordon03_SMCBar extinction law
Methods Documentation
- function(lamb, Av=1, Rv=2.74, Alambda=True, **kwargs)[source]¶
Gordon03_SMCBar extinction law
- Parameters:
- lamb: float or ndarray(dtype=float)
wavelength [in Angstroms] at which to evaluate the law.
- Av: float
desired A(V) (default 1.0)
- Rv: float
desired R(V) (default 2.74)
- Alambda: bool
if set returns +2.5*1./log(10.)*tau, tau otherwise
- Returns:
- r: float or ndarray(dtype=float)
attenuation as a function of wavelength depending on Alambda option +2.5*1./log(10.)*tau, or tau