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Updates on Kepler and K2

Tom Barclay
September 11, 2016

Updates on Kepler and K2

An invited talk I gave at a conference on Understanding the roles of rotation, pulsation and chemical peculiarities in the upper main sequence, in the Lake District, UK.

Tom Barclay

September 11, 2016
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  1. Confirmed Kepler/K2 Planets: dynamical Coughlin et al. 2015 Q1-Q17 DR24

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

    DR24 SOC 9.2 K2 Candidates Kepler Candidates Non-Kepler Kepler/K2 Confirmed
  3. 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.5-0.7

    0.7 - 1 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 55 165 381 520 567 268 94 54 53 39 17
  4. 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
  5. 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
  6. Kepler prime versus K2 target stars Huber et al. 2016,

    ApJS 224 2 41% K&M dwarfs 16% K&M dwarfs
  7. K2 Senior Review Results • K2 ranked Excellent in all

    three categories - synergies between K2 and Spitzer were emphasized • Funding recommended in FY 17/18/19 - through end of the operating lifetime (~mid-2018) • "...with a very efficient GO program, the project includes worldwide participation covering every continent except Antarctica. The GO program is recognized as a major reason for the wealth of new scientific results." K2-south?
  8. K2 Recent Challenges • We went into Emergency Mode at

    the beginning of C9 • We lost another CCD module but still have 18 of 21 remaining
  9. Upcoming Deadlines • Campaign 14, 15, 16 (Cycle 5) -

    Step-1 Nov 3 - Step-2 Dec 15 • Directors Discretionary Targets Program - Campaign 13 targets due Nov 10
  10. 24 • 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
  11. 29 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
  12. 9

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

    Sun “Forward facing”
 (+ Velocity Vector) Bulge
  14. 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
  15. 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
  16. 37

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

    ApJS 224 2 41% K&M dwarfs 16% K&M dwarfs