Wednesday, November 14, 2012

free-floating planet from CFHT?

Maybe, or maybe just another low-temperature T dwarf.

Stellar mass vs. radius

Theoretical models are still systematically off in their predictions of the stellar mass-radius relation; see page 33 of

...but the discrepancies are probably just due to uncertainties in the input physics and approximations used, not to fundamental flaws in our understanding of the universe.