One or more bound planets per Milky Way star from microlensing observations

  title={One or more bound planets per Milky Way star from microlensing observations},
  author={A. Cassan and D. Kubas and J. Beaulieu and M. Dominik and K. Horne and J. Greenhill and J. Wambsganss and J. Menzies and A. Williams and U. J{\o}rgensen and A. Udalski and D. Bennett and M. Albrow and V. Batista and S. Brillant and J. Caldwell and A. Cole and C. Coutures and K. H. Cook and S. Dieters and D. D. Prester and J. Donatowicz and P. Fouqu'e and K. Hill and N. Kains and S. Kane and J. Marquette and R. Martin and K. Pollard and K. Sahu and C. Vinter and D. Warren and B. Watson and M. Zub and T. Sumi and M. Szymański and M. Kubiak and R. Poleski and I. Soszyński and K. Ulaczyk and G. Pietrzyński and Ł. Wyrzykowski},
  • A. Cassan, D. Kubas, +39 authors Ł. Wyrzykowski
  • Published 2012
  • Physics, Medicine
  • Nature
  • Most known extrasolar planets (exoplanets) have been discovered using the radial velocity or transit methods. Both are biased towards planets that are relatively close to their parent stars, and studies find that around 17–30% (refs 4, 5) of solar-like stars host a planet. Gravitational microlensing, on the other hand, probes planets that are further away from their stars. Recently, a population of planets that are unbound or very far from their stars was discovered by microlensing. These… CONTINUE READING
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