http://arxiv.org/abs/1612.03556
Considering probability distribution as a function of the average density $\bar{\rho}$ computed for 424 extrasolar planets we identify three log-normal Gaussian population components. The two most populous components at $\bar{\rho}\simeq0.7$ g/cc and $\bar{\rho}\simeq7$ g/cc are the ice/gas giants and iron/rock super-Earths, respectively. A third component at $\bar{\rho}\simeq30$ g/cc is consistent with brown dwarfs, i.e., electron degeneracy supported objects. We note presence of several extreme density planetary objects.
A. Odrzywolek and J. Rafelski
Tue, 13 Dec 16
62/77
Comments: Four pages, two figures. Supplement, program and data files included
You must be logged in to post a comment.