F11_MWGC

class dust_extinction.averages.F11_MWGC(**kwargs)[source]

Bases: dust_extinction.baseclasses.BaseExtModel

Fritz et al (2011) MW Galactic Center Curve

Parameters
None
Raises
None

Notes

From Fritz et al. (2011, ApJ, 737, 73)

Example showing the average curve

import numpy as np
import matplotlib.pyplot as plt
import astropy.units as u

from dust_extinction.averages import F11_MWGC

fig, ax = plt.subplots()

# define the extinction model
ext_model = F11_MWGC()

# generate the curves and plot them
x = np.arange(1.0/ext_model.x_range[1], 1.0/ext_model.x_range[0], 0.1) * u.micron

ax.plot(x,ext_model(x),label='F11_MWGC')
ax.plot(1.0/ext_model.obsdata_x, ext_model.obsdata_axav, 'ko',
        label='obsdata')

ax.set_xlabel(r'$\lambda$ [$\mu m$]')
ax.set_ylabel(r'$A(x)/A(V)$')

ax.legend(loc='best')
plt.show()

(Source code, png, hires.png, pdf)

../_images/dust_extinction-averages-F11_MWGC-1.png

Attributes Summary

Rv

x_range

Methods Summary

evaluate(in_x)

F11 MWGC function

Attributes Documentation

Rv = 3.1
x_range = [0.05246039240373518, 0.7800312012480499]

Methods Documentation

evaluate(in_x)[source]

F11 MWGC function

Parameters
in_x: float

expects either x in units of wavelengths or frequency or assumes wavelengths in wavenumbers [1/micron]

internally wavenumbers are used

Returns
axav: np array (float)

A(x)/A(V) extinction curve [mag]

Raises
ValueError

Input x values outside of defined range