Astronomical Observations(?) for Transit Validation
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1 Astronomical Observations(?) for Transit Validation Timothy Morton (Princeton / U of Florida / Flatiron Sagan Summer Workshop July 23, 2018
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7 OGLE-TR-56b Konacki+ (2004)
8 OGLE planet candidates, c.2004 Unsuitable for follow-up Stellar Binaries No RVs at km/s level 6 8 Early spectral type
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10 OGLE-TR-33 Torres 2004
11 OGLE-TR-33 Torres et al. (2004)
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14 OGLE planet candidates, c.2004 Unsuitable for follow-up Stellar Binaries No RVs at km/s level 6 8 Early spectral type
15 Follow-up observations for transit follow-up & confirmation Follow-up photometry, possibly in multiple filters Is depth color-dependent? Reconnaissance spectroscopy to characterize host star Is it a giant? Rapid rotator? Medium-precision (~km/s) RVs observations Vetting Is it an eclipsing binary? Brown dwarf? High-resolution imaging Is there another star (or stars) in the aperture? High-precision radial velocity Measure the mass of the planet? Confirmation!
16 OGLE-TR-33 Torres 2004
17 OGLE-TR-33 Torres 2004
18 TRES-1 b Alonso+ (2004) V = 11.4 Follow-up observations: H- and K- band AO imaging Medium-resolution spectroscopy (7 epochs) Multi-color transit photometry (3 facilities, 7 filters) Keck/HIRES RV spectroscopy (8 epochs) 80% false positive rate for this survey
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21 Kepler-10 system b confirmed by RVs c validated with BLENDER Kepler 4b-7b announced TDM & Johnson predict >90% reliability Fressin+ corroborate low FP rate First K2 validations 17 planets isochrones and vespa introduced/released Kepler validations Kepler launch Kepler-9 system First public Kepler candidate catalog b,c confirmed by TTVs d validated with BLENDER Kepler-22b 700+ multi-kois validated TDM: automated validation procedure First Kepler habitable-zone planet validated with BLENDER 100+ K2 validations
22 Kepler-10 system b confirmed by RVs c validated with BLENDER Kepler 4b-7b announced TDM & Johnson predict >90% reliability Fressin+ corroborate low FP rate First K2 validations 17 planets isochrones and vespa introduced/released Kepler validations Kepler launch Kepler-9 system First public Kepler candidate catalog b,c confirmed by TTVs d validated with BLENDER Kepler-22b 700+ multi-kois validated TDM: automated validation procedure First Kepler habitable-zone planet validated with BLENDER 100+ K2 validations
23 Kepler-10 system b confirmed by RVs c validated with BLENDER Kepler 4b-7b announced TDM & Johnson predict >90% reliability Fressin+ corroborate low FP rate First K2 validations 17 planets isochrones and vespa introduced/released Kepler validations Kepler launch Kepler-9 system First public Kepler candidate catalog b,c confirmed by TTVs d validated with BLENDER Kepler-22b 700+ multi-kois validated TDM: automated validation procedure First Kepler habitable-zone planet validated with BLENDER 100+ K2 validations
24 Kepler-22b Borucki et al. (2011): Imaging from 3 different facilities (seeing-limited, speckle, AO) Keck/HIRES spectroscopy at 17 epochs 17 hours of Warm Spitzer observation to measure transit color dependence BLENDER analysis
25 Follow-up observations for transit follow-up & confirmation Follow-up photometry, possibly in multiple filters Is depth color-dependent? Reconnaissance spectroscopy to characterize host star Is it a giant? Rapid rotator? Medium-precision (~km/s) RVs observations Vetting Is it an eclipsing binary? Brown dwarf? High-resolution imaging Is there another star (or stars) in the aperture? High-precision radial velocity Measure the mass of the planet? Confirmation!
26 Follow-up observations for transit follow-up & validation Follow-up photometry, possibly in multiple filters Is depth color-dependent? Reconnaissance spectroscopy to characterize host star Is it a giant? Rapid rotator? Medium-precision (~km/s) RVs observations Vetting Is it an eclipsing binary? Brown dwarf? High-resolution imaging Is there another star (or stars) in the aperture? High-precision radial velocity Measure the mass of the planet? Probabilistic arguments Confirmation! Validation!
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28 Kepler-10 system b confirmed by RVs c validated with BLENDER Kepler 4b-7b announced TDM & Johnson predict >90% reliability Fressin+ corroborate low FP rate First K2 validations 17 planets isochrones and vespa introduced/released Kepler validations Kepler launch Kepler-9 system First public Kepler candidate catalog b,c confirmed by TTVs d validated with BLENDER Kepler-22b 700+ multi-kois validated TDM: automated validation procedure First Kepler habitable-zone planet validated with BLENDER 100+ K2 validations
29 Kepler-10 system b confirmed by RVs c validated with BLENDER Kepler 4b-7b announced TDM & Johnson predict >90% reliability Fressin+ corroborate low FP rate First K2 validations 17 planets isochrones and vespa introduced/released Kepler validations Kepler launch Kepler-9 system First public Kepler candidate catalog b,c confirmed by TTVs d validated with BLENDER Kepler-22b 700+ multi-kois validated TDM: automated validation procedure First Kepler habitable-zone planet validated with BLENDER 100+ K2 validations
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31 TDM & Johnson (2011)
32 a priori False Positive Probabilities of Kepler candidates (Morton & Johnson 2011) Independent tests: Fressin et al. (2013) Consistent estimate of FP rate Desert al. (2015) 34 observed w/ Warm Spitzer, zero FPs
33 Kepler-10 system b confirmed by RVs c validated with BLENDER Kepler 4b-7b announced TDM & Johnson predict >90% reliability Fressin+ corroborate low FP rate First K2 validations 17 planets isochrones and vespa introduced/released Kepler validations Kepler launch Kepler-9 system First public Kepler candidate catalog b,c confirmed by TTVs d validated with BLENDER Kepler-22b 700+ multi-kois validated TDM: automated validation procedure First Kepler habitable-zone planet validated with BLENDER 100+ K2 validations
34 Kepler-10 system b confirmed by RVs c validated with BLENDER Kepler 4b-7b announced TDM & Johnson predict >90% reliability Fressin+ corroborate low FP rate First K2 validations 17 planets isochrones and vespa introduced/released Kepler validations Kepler launch Kepler-9 system First public Kepler candidate catalog b,c confirmed by TTVs d validated with BLENDER Kepler-22b 700+ multi-kois validated TDM: automated validation procedure First Kepler habitable-zone planet validated with BLENDER 100+ K2 validations
35 light curve shape Planet Stellar EB δ τ (δ, T, T/τ) T Simulate representative populations
36 Hierarchical EB Scenario
37 Transiting Planet Scenario
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50 Kepler-10 system b confirmed by RVs c validated with BLENDER Kepler 4b-7b announced TDM & Johnson predict >90% reliability Fressin+ corroborate low FP rate First K2 validations 17 planets isochrones and vespa introduced/released Kepler validations Kepler launch Kepler-9 system First public Kepler candidate catalog b,c confirmed by TTVs d validated with BLENDER Kepler-22b 700+ multi-kois validated TDM: automated validation procedure First Kepler habitable-zone planet validated with BLENDER 100+ K2 validations
51 Kepler-10 system b confirmed by RVs c validated with BLENDER Kepler 4b-7b announced TDM & Johnson predict >90% reliability Fressin+ corroborate low FP rate First K2 validations 17 planets isochrones and vespa introduced/released Kepler validations Kepler launch Kepler-9 system First public Kepler candidate catalog b,c confirmed by TTVs d validated with BLENDER Kepler-22b 700+ multi-kois validated TDM: automated validation procedure First Kepler habitable-zone planet validated with BLENDER 100+ K2 validations
52 github.com/timothydmorton
53 Kepler-10 system b confirmed by RVs c validated with BLENDER Kepler 4b-7b announced TDM & Johnson predict >90% reliability Fressin+ corroborate low FP rate First K2 validations 17 planets isochrones and vespa introduced/released Kepler validations Kepler launch Kepler-9 system First public Kepler candidate catalog b,c confirmed by TTVs d validated with BLENDER Kepler-22b 700+ multi-kois validated TDM: automated validation procedure First Kepler habitable-zone planet validated with BLENDER 100+ K2 validations
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55 TDM+ (2016)
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59 Kepler-10 system b confirmed by RVs c validated with BLENDER Kepler 4b-7b announced TDM & Johnson predict >90% reliability Fressin+ corroborate low FP rate First K2 validations 17 planets isochrones and vespa introduced/released Kepler validations Kepler launch Kepler-9 system First public Kepler candidate catalog b,c confirmed by TTVs d validated with BLENDER Kepler-22b 700+ multi-kois validated TDM: automated validation procedure First Kepler habitable-zone planet validated with BLENDER 100+ K2 validations
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61 Follow-up observations for transit follow-up & validation Follow-up photometry, possibly in multiple filters Is depth color-dependent? Reconnaissance spectroscopy to characterize host star Is it a giant? Rapid rotator? Medium-precision (~km/s) RVs observations Vetting Is it an eclipsing binary? Brown dwarf? High-resolution imaging Is there another star (or stars) in the aperture? High-precision radial velocity Measure the mass of the planet? Probabilistic arguments Confirmation! Validation!
62 Follow-up observations for transit follow-up & validation Follow-up photometry, possibly in multiple filters Is depth color-dependent? Reconnaissance spectroscopy to characterize host star Is it a giant? Rapid rotator? Medium-precision (~km/s) RVs observations Vetting Is it an eclipsing binary? Brown dwarf? High-resolution imaging Is there another star (or stars) in the aperture? High-precision radial velocity Measure the mass of the planet? Probabilistic arguments Confirmation! Validation!
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