batalha press aas20110110
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Kepler’s First Rocky Planet: Kepler-10b
Natalie BatalhaSan Jose State University
Deputy Science Team Lead, Kepler MissionNASA Ames Research Center
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NASA’s Kepler MissionDetermining the frequency of Earth-size and larger planets
in the habitable zone of Sun-like stars
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Transit PhotometryClick link or graphic to play movie:
http://kepler.nasa.gov/multimedia/AnimationsandMore/animations/?ImageID=38
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Kepler’s First Rocky Planet
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Kepler Field of ViewClick link or graphic to play movie:
http://kepler.nasa.gov/multimedia/AnimationsandMore/animations/mediateleconanimations/?ImageID=106
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Kepler-10 Light Curve
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Kepler-10 Light CurvePeriod = 45.29 days
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Kepler-10 Light CurvePeriod = 45.29 days
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Kepler-10 Light Curve
Period = .84 days
Period = 45.29 days
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Kepler-10 Light Curve
Period = .84 days
Period = 45.29 days
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Transit Yields Planet Radius
10b Size
Radius = 1.4 R
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Doppler Measurements Yield Planet Mass
Mass = 4.6 M
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Asteroseismology
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Stellar PropertiesKepler-10
• G4V• Mass = 0.90 • Radius = 1.06 R• Age > 8 Gyr• Distance = 560 Light-years
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Transit and DopplerMeasurements Yield Density
+10b Size
MassVolume = 8.8 g/cm3
Density
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Composition of Kepler-10b
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Kepler-10b, artist’s conceptClick link or graphic to play movie:
http://kepler.nasa.gov/multimedia/AnimationsandMore/animations/mediateleconanimations/?ImageID=107
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Summary• Kepler-10b is orbiting a star very much
like our own Sun, but with an age greater than 8 billion years, at a distance of 560 light years.
• Kepler-10b is the smallest exoplanetdiscovered to date and the firstunquestionably rocky planet orbitinga star outside our Solar System.