How many of these ? Out there

At least One in Six stars has an Earth-size planet Francois Fressin, G. Torres, D. Charbonneau & the team

The list of Kepler candidates contains most of the knowledge about exoplanets. From the February 2012 catalog

The list of Kepler candidates contains most of the knowledge about exoplanets. But it is not COMPLETE,

The list of Kepler candidates contains most of the knowledge about exoplanets. But it is not COMPLETE, and it is not PURE.

An observed periodic transit signal could be due to: Transiting Planet Eclipsing Binary Kepler candidates PURITY : The issue of false positives

An observed periodic transit signal could be due to: Transiting Planet Eclipsing Binary Kepler candidates PURITY : The issue of false positives We found that they can only account for 9.5 % of the huge number of Kepler candidates

8 Occurrence of Planets Small

9 The Occurrence of Earth-size planets < 85 days ?Habitable zone ?

10 The Occurrence of Earth-size planets 17 % < 85 days ?Habitable zone ?

11 The Occurrence of Earth-size planets 17 % Too Early to call < 85 days ?Habitable zone ?

17 % stars have an Earth-size planet within 85 days And 70 % within 400 days But it does not include long-period Earths & Super Earths Stars & Planetary Systems Almost all Sun-like stars have a planetary system !

Preliminary results for the New candidate catalog The occurrence of planets we determined are in agreement with the new candidate list. Kepler detection efficiency improved. February 2012January 2013

It was previously thought that small planets were more common orbiting small stars The results of Kepler can be explained with planets equally common orbiting the different stellar types Planets and stellar type Sun

At least 1 star in 6 has an Earth-size planet Almost all stars have a planetary system Small planets are equally common around all stars Conclusions 17 %Too early