G03_LMCAvg¶
-
class
dust_extinction.averages.
G03_LMCAvg
(*args, meta=None, name=None, **kwargs)[source]¶ Bases:
dust_extinction.baseclasses.BaseExtAveModel
Gordon et al (2003) LMCAvg Average Extinction Curve
- Parameters
- None
- Raises
- None
Notes
From Gordon et al. (2003, ApJ, 594, 279)
Example showing the average curve
import numpy as np import matplotlib.pyplot as plt import astropy.units as u from dust_extinction.averages import G03_LMCAvg fig, ax = plt.subplots() # define the extinction model ext_model = G03_LMCAvg() # generate the curves and plot them x = np.arange(ext_model.x_range[0], ext_model.x_range[1],0.1)/u.micron ax.plot(x,ext_model(x),label='G03 LMCAvg') ax.plot(ext_model.obsdata_x, ext_model.obsdata_axav, 'ko', label='obsdata') ax.set_xlabel(r'$x$ [$\mu m^{-1}$]') ax.set_ylabel(r'$A(x)/A(V)$') ax.legend(loc='best') plt.show()
(Source code, png, hires.png, pdf)
Attributes Summary
Methods Summary
evaluate
(self, in_x)G03 LMCAvg function
Attributes Documentation
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Rv
= 3.41¶
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obsdata_axav
= array([0.1 , 0.186, 0.257, 1. , 1.293, 1.518, 1.786, 1.969, 2.149, 2.391, 2.771, 2.967, 2.846, 2.646, 2.565, 2.566, 2.598, 2.607, 2.668, 2.787, 2.874, 2.983, 3.118, 3.231, 3.374, 3.366])¶
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obsdata_tolerance
= 0.06¶
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obsdata_x
= array([0.455, 0.606, 0.8 , 1.818, 2.273, 2.703, 3.375, 3.625, 3.875, 4.125, 4.375, 4.625, 4.875, 5.125, 5.375, 5.625, 5.875, 6.125, 6.375, 6.625, 6.875, 7.125, 7.375, 7.625, 7.875, 8.125])¶
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x_range
= [0.3, 10.0]¶
Methods Documentation
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evaluate
(self, in_x)[source]¶ G03 LMCAvg 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