https://briankoberlein.com/2015/08/23/judging-by-the-size/ Brian Koberlein Fri, 22 Feb 2019 18:22:15 +0000 hourly 1 https://wordpress.org/?v=5.1 https://briankoberlein.com/2015/08/23/judging-by-the-size/#comment-2956 Sun, 23 Aug 2015 16:35:52 +0000 https://briankoberlein.com/?p=5140#comment-2956 Do exoplanets tend to have higher eccentricity than those in the solar system? If so, how do we know that?

]]> https://briankoberlein.com/2015/08/23/judging-by-the-size/#comment-2952 Sun, 23 Aug 2015 12:44:08 +0000 https://briankoberlein.com/?p=5140#comment-2952 Orbital period doesn’t tell us the eccentricity of the orbit, so we can’t determine the mass. We can use other measures such as Doppler motion of the star to put an upper constraint on a planet.

]]> https://briankoberlein.com/2015/08/23/judging-by-the-size/#comment-2950 Sun, 23 Aug 2015 12:08:29 +0000 https://briankoberlein.com/?p=5140#comment-2950 Doesnt the orbital period provide a very good way to constrain planet density, if its size is known? Ie. Close planets at such a small size should have a fairly large density and cant be minineptunes ?

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