How Dry is the Brown Dwarf Desert?: Quantifying the Relative Number of Planets, Brown Dwarfs and Stellar Companions around Nearby Sun-like Stars Daniel Grether1 Charles H. Lineweaver 1 1,2 arXiv:astro-ph/0412356 v1 15 Dec 2004 Department of Astrophysics, School of Physics, University of New South Wales, Sydney, NSW 2052, Australia Planetary Science Institute, Research School of Astronomy and Astrophysics Research School of Earth Sciences, Australian National University ... 4­ Fig. ...

Rep ort by the ESA-ESO Working Group on Galactic p opulations, chemistry and dynamics Abstract Between the early 40s, when Baade showed the first evidence for the existence of two distinct stellar populations, and today, with our Galaxy surprising us with new substructures discovered almost on a monthly basis, it is clear that a remarkable progress has been achieved in our understanding of the Galaxy, of its structure and stellar populations, and of its chemical and dynamical signatures. Yet, some questions