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karllark committed Aug 14, 2024
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The wavelength dependence of extinction for a model is computed by passing a
wavelength or frequency vector with units. Each model has a valid wavelength
range that is enforced, as extrapolation is not supported. The model output is in
the standard $A(\lambda)/A(V)$ units where $A(\lambda)$ is the extinction at
wavelength $\lambda$ and $A(V)$ is the extinction in the V band. Every model has
a helper `extinguish` function that alternatively provides the fractional
effects of extinction for a specific dust column (e.g., $A(V)$ value). This
allows for the effects of dust to be modeled for or removed from an observation.
range that is enforced, as extrapolation is not supported. The model output is
in the standard $A(\lambda)/A(V)$ units where $A(\lambda)$ is the extinction in
magnitudes at wavelength $\lambda$ and $A(V)$ is the extinction in magnitudes
in the V band. Every model has a helper `extinguish` function that
alternatively provides the fractional effects of extinction for a specific dust
column (e.g., $A(V)$ value). This allows for the effects of dust to be modeled
for or removed from an observation.

This package does not implement dust attenuation models[^1]. Dust attenuation
results when observing more complex systems like a star with nearby,
circumstellar dust or a galaxy with many stars extinguished by different amounts
of dust. In both cases, the wavelength dependence of effects of dust are
dependent not just on the dust grain properties, but also the effects of the
dust radiative transfer [@Steinacker13]. Specifically, these effects are the averaging of sources
extinguished by differing amount of dust and the inclusion of a significant
number of photons scattered into the observing beam.
results when observing more complex systems such as a star with nearby,
circumstellar dust or a galaxy with many stars extinguished by different
amounts of dust. In both cases, the wavelength dependence of effects of dust
are dependent not just on the dust grain properties, but also the effects of
the dust radiative transfer [@Steinacker13]. Specifically, these effects are
the averaging of sources extinguished by differing amount of dust and the
inclusion of a significant number of photons scattered into the observing beam.

[^1]: See [karllark/dust_attenuation](https://github.com/karllark/dust_attenuation).

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