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Roger Hunter (Ames Research Center) & Kepler TeamMarch 26, 2010

A Search for Earth-size PlanetsBorucki Page # 1Life on HAT-P-7b?2

HAT-P-7:Distance: 320 pcMagnitude: 10.5Mass: 1.47 MsunTemp: 6350 KRadius: 1.84 Rsun

HAT-P-7bMass: 1.8 MJSemimajor axis: 0.0379 AUOrbital Period: 2.2047298 daysRadius: 1.4 RJTemperature: 2650 KA Search for Earth-size PlanetsBorucki Page # KEPLER HAS THE PRECISION TO DETECT EARTH-SIZE PLANETS

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A Search for Earth-size PlanetsBorucki Page #

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A Search for Earth-size PlanetsBorucki Page # KEPLER IS THE NEXT STEP IN THE SEARCH FOR LIFE IN OUR GALAXY. By 2013, Kepler should;

Determine whether Earths in the Habitable Zones of other stars are common or rare.

Guides the next step in our exploration of our Milky Way Galaxy

A Search for Earth-size PlanetsBorucki Page # 9

Image by Carter Roberts (1946-2008)We extracted the harmonic components from Quarter 1 light curves of variable stars

Extended these time series to and equivalent of 3.5 years of data

Wrote out as WAV files sampled at 8192 Hz

What HAT-P7b sounds like: Another interesting star:

10What Does HAT-P7b Sound Like?

A Search for Earth-size PlanetsBorucki Page # Image by Carter Roberts (1946-2008)11Music From the Stars (2)

A Search for Earth-size PlanetsBorucki Page # A VERY HOT COMPANION

LIGHT CURVEOCCULTATION: 1300 ppmTRANSIT; 500ppmStar temperature = 9400KCompanion temperature = 12,200KCompanion size = 0.8 RJ A Search for Earth-size PlanetsBorucki Page # BINARY WITH CIRCUMBINARY PLANET?

LOSPlanet ?Binary StarxFocus of ellipseA Search for Earth-size PlanetsBorucki Page #

Ultra Deep Field (Hubble Space Telescope)

A Search for Earth-size PlanetsBorucki Page #