Extinction

class sedfitter.extinction.Extinction

Bases: object

Attributes Summary

chi
wav

Methods Summary

from_file(filename[, columns, wav_unit, …])	Read an extinction law from an ASCII file.
from_table(table)
get_av(wav)	Interpolate the Av at given wavelengths
to_table()

Attributes Documentation

chi

wav

Methods Documentation

classmethod from_file(filename, columns=(0, 1), wav_unit=Unit("micron"), chi_unit=Unit("cm2 / g"))

Read an extinction law from an ASCII file.

This reads in two columns: the wavelength, and the opacity (in units of area per unit mass).

Parameters:

filename : str, optional

The name of the file to read the extinction law from

columns : tuple or list, optional

The columns to use for the wavelength and opacity respectively

wav_unit : Unit

The units to assume for the wavelength

chi_unit : Unit

The units to assume for the opacity

classmethod from_table(table)

get_av(wav)

Interpolate the Av at given wavelengths

Parameters:

wav : Quantity

The wavelengths at which to interpolate the visual extinction.

to_table()