[ExI] Planets galore!

Jeremy Webb jedwebb at hotmail.com
Thu Feb 9 06:29:30 UTC 2012

What an exiting theory! This is one heck of a disaster movie in the making
too, step aside Bruce Willis! :0)


Jeremy Webb Heathen Vitki
Tel: (07758) 966076
e-Mail: jedwebb at hotmail.com

On 08/02/2012 16:32, "BillK" <pharos at gmail.com> wrote:

> Nomadic Planets May Swarm the Galaxy
> <http://arxiv.org/abs/1201.2687>
> <http://kipac.stanford.edu/collab/research/highlights/tidbits2012/nomads>
> We estimate that there may be up to ~10^5 compact objects in the mass
> range 10^{-8} -10^{-2} solar mass per main sequence star that are
> unbound to a host star in the Galaxy. We refer to these objects as
> nomads; in the literature a subset of these are sometimes called
> free-floating or rogue planets. Our estimate for the number of
> Galactic nomads is consistent with a smooth extrapolation of the mass
> function of unbound objects above the Jupiter-mass scale, the stellar
> mass density limit, and the metallicity of the interstellar medium.
> Complete pdf file
> <http://arxiv.org/pdf/1201.2687>
> ===============
> Can there really be up to 100,000 wandering planets for *every* star?
> That's a mind-boggling big number of planets.
> BillK
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