Wednesday, November 14, 2012

free-floating planet from CFHT?

Maybe, or maybe just another low-temperature T dwarf.
http://www.eso.org/public/archives/releases/sciencepapers/eso1245/eso1245a.pdf

Stellar mass vs. radius

Theoretical models are still systematically off in their predictions of the stellar mass-radius relation; see page 33 of http://arxiv.org/pdf/1211.2527.pdf

...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.