I found an interesting paper on the subject over on the European southern observatory website: https://www.eso.org/public/archives/releases/sciencepapers/eso20

I found an interesting paper on the subject over on the European southern observatory website: https://www.eso.org/public/archives/releases/sciencepapers/eso2013/eso2013a.pdf https://www.eso.org/public/archives/releases/sciencepapers/e...