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Kepler/K2 Year in Review: Science from Kepler and K2

Tom Barclay
August 23, 2016

Kepler/K2 Year in Review: Science from Kepler and K2

A talk I gave at the Kepler Year In Review meeting at NASA Ames. The audience was mostly Ball and LASP engineers

Tom Barclay

August 23, 2016
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  1. Science from Kepler and K2 Tom Barclay NASA Ames Research

    Center August 23, 2016
  2. Exoplanet Detections, 1995-2009 Radius Relative to Earth Orbital Period in

    days Earth Jupiter
  3. Exoplanet Discoveries to Date Coughlin et al. 2015

  4. Confirmed Kepler/K2 Planets: dynamical Coughlin et al. 2015 Q1-Q17 DR24

    SOC 9.2 K2 Candidates Kepler Candidates Non-Kepler Kepler/K2 Confirmed
  5. Confirmed Planets: dynamical + statistical Coughlin et al. 2015 Q1-Q17

    DR24 SOC 9.2 K2 Candidates Kepler Candidates Non-Kepler Kepler/K2 Confirmed
  6. 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 1

    – 1.4 1.4 - 2 2 – 2.8 2.8 - 4 4 – 5.7 5.7 - 8 8 - 11 11 - 16 16 - 23 Planet Size (Earth=1) Fraction Observed Sizes not seen in our Solar System
  7. 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 Sizes

    not seen in our Solar System 1 – 1.4 1.4 - 2 2 – 2.8 2.8 - 4 4 – 5.7 5.7 - 8 8 - 11 11 - 16 16 - 23 Planet Size (Earth=1) Average Number of Planets per Star
  8. Confirmed Habitable Zone Planets New validations from Morton et al.

    2016 ApJ 822 86
  9. 9

  10. Balancing Solar Pressure Top-down view

  11. Current Status Senior Review 2014 Senior Review 2016 Data Available

    In Progress Cycle 5 Supernova-focused
  12. Kepler Search Space: 3000 light-years 0.25% of the sky K2

    600 light-years 4% of sky
  13. Finding Exoplanet Targets for Followup

  14. Kruse, Agol, & team; from Exo-I, Davos More Soon!

  15. 15 • K2-42: four planets with 1.2-1.5 Earth radii and

    orbital periods 5-25 days • Two planets in the Habitable Zone! • In Campaign 12, K2 will observe TRAPPIST-1, which has five Earth-size planets orbiting a M8 V star ~30 LY away New Multi-Planet Systems
  16. None
  17. None
  18. Finding Exoplanet Targets for Followup

  19. Finding Exoplanet Targets for Followup

  20. 20 Disintegrating Planets • WD 1145+017 - disintegrating planets or

    planetesimals in orbit around a white dwarf star • Four disintegrating transiting systems known, 3 discovered with K2
  21. Completing the Exoplanet Census

  22. 9

  23. Earth Kepler Spitzer View from above on 15 May 2016

    0.8 AU Sun
  24. Earth Kepler Spitzer View from above on 15 May 2016

    Sun “Forward facing”
 (+ Velocity Vector) Bulge
  25. 25 K2 Campaign 9

  26. K2 Microlensing Experiment Obtaining sufficient telescope resources was a key

    component to a successful campaign and our #1 risk CFHT UKIRT IRTF Keck Subaru OGLE LCOGT KMTNet LCOGT MiNDSTEp Gemini-S VST SMARTS LCOGT KMTNet LCOGT MiNDSTEp IRSF MiNDSTEp LT LCOGT KMTNet LCOGT SkyMapper MOA WIYN PLANET MiNDSTEp Wise
  27. Early Demonstration MOA-2016-BLG-233 Preliminary K2 Reduction by Dun Wang, NYU

    MOA data from the MOA Collaboration http://www.massey.ac.nz/∼iabond/moa/ alert2016/alert.php Difference Flux (arbitrary units) HJD-2457500 K2 MOA 0 5000 10000 15000 20000 0 5 10 15 20 25 PRELIMINARY
  28. Giant Planets in the Solar System

  29. 29

  30. Bodies in the Outer Solar System Pal, Szabó, Szabó et

    al. (2014)
  31. The Pleiades

  32. Photometry of the Seven Sisters The Pleiades

  33. 33 Star Clusters - Pleiades

  34. Publications

  35. None
  36. Check keplerscience.arc.nasa.gov for updates

  37. Backup

  38. Kepler prime versus K2 target stars Huber et al. 2016,

    ApJS 224 2 41% K&M dwarfs 16% K&M dwarfs
  39. K2 Precision is Comparable to Kepler Prime