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How many of these ?

Out there. How many of these ?. 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.

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How many of these ?

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  1. Out there How many of these ?

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

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

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

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

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

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

  8. Occurrence of Planets Small 8

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

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

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

  12. Stars & Planetary Systems 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 Almost all Sun-like stars have a planetary system !

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

  14. Planets and stellar type • 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 Sun

  15. Conclusions 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 17 % Too early

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