PA is the receding side?

editeodoro / Bbarolo

Bbarolo is a 3D fitting tool to derive the kinematics of galaxies from emission-line observations.

http://editeodoro.github.io/Bbarolo/

GNU General Public License v2.0

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PA is the receding side? #21

Closed teuben closed 3 years ago

teuben commented 3 years ago

I think we may need a clarification in the documentation. The PA is not defined in terms of receding or approaching side, where the convention is receding. The figure with PA=124 does seem to suggest this is indeed receding, but I didn't see it mention. I'm surprised i'm only noticing this ambiguity now.

editeodoro commented 3 years ago

Hi Peter, yes, you're right, the PA is defined from the receding side. I am also surprised that I did not specify that in the documentation, thanks for noticing this! I have now updated the docs.

Enrico