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

Transcript

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
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
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
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
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
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