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HeloiseS / hoki

Bridging the gap between observation and theory
https://heloises.github.io/hoki/intro.html
BSD 3-Clause "New" or "Revised" License
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AgeWizard bias for densely populated regions of the HR diagram [FEATURE] #89

Open AlexandreLegault opened 1 year ago

AlexandreLegault commented 1 year ago

AgeWizard appears to be bias when yielding a most probable age when the bulk of a population occupies the same bins of a HR diagram, regardless of the contribution of scarcer stars farther along the isocontours. Is there a way to unbias the AgeWizard tool so that it reduces the contribution of overlapping objects?

Inspection of each member's PDF for physical interpretation can do the trick for now, but a weighting system could be interesting! Thanks!

HeloiseS commented 1 year ago

Thanks for opening this issue. If anyone else is reading up on this as they are using age wizard, here is the current bias that exists:

AgeWizard can misinterpret stars that are on the turn off point as being MS of a lower age population that has MORE stars there. As a result AgeWizard will tend to OVERESTIMATE the age of a population.

This project is on the back burner but there should be away to apply a scaling to the stars such that this bias is being accounted for.