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benmontet / k2-characterization

Stellar/planet properties and confirmation of some K2 planets
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Giants? #8

Closed benmontet closed 9 years ago

benmontet commented 9 years ago

Dan Huber claims 201257461 and 201929294 are giants. The former has a logg from RAVE which is consistent with a halo giant, while the latter comes from reduced proper motion.

This might explain some of the weirdness in the fit for 201929294. @timothydmorton, what's the upper mass limit in the Dartmouth isochrones as you use them? It looks like the default is only a couple solar masses, so if these are giants, they might just not be in the parameter space covered by Dartmouth models.

timothydmorton commented 9 years ago

I'm not using an upper mass limit, but I imposed an upper distance limit of 500pc, which would likely exclude giant solutions...the Dartmouth grids as I'm using them extend to ~3.7 Msun.

benmontet commented 9 years ago

Okay. I will note this in the text.

On Wed, Mar 4, 2015 at 2:12 PM, timothydmorton notifications@github.com wrote:

I'm not using an upper mass limit, but I imposed an upper distance limit of 500pc, which would likely exclude giant solutions...the Dartmouth grids as I'm using them extend to ~3.7 Msun.

— Reply to this email directly or view it on GitHub https://github.com/benmontet/k2-characterization/issues/8#issuecomment-77224326 .