get_extinction#
- cogsworth.obs.observables.get_extinction(coords)[source]#
Calculates the visual extinction values for a set of coordinates
Reddening due to dust is calculated using the Bayestar dustmap. Then the conversion from this to a visual extension is done assuming a total-to-selective extinction ratio of 3.3, as is used by Green+2019
Warning
The dustmap used only covers declinations > -30 degrees, any supplied coordinates below this will be reflected around the galactic plane (any of [(-l, b), (l, -b), (-l, -b)]) and the dust at these locations will be used instead