ON THE RELATIVE SIZES OF PLANETS WITHIN KEPLER MULTIPLE-CANDIDATE SYSTEMS
- NASA Exoplanet Science Institute/Caltech, Pasadena, CA 91125 (United States)
- UCO/Lick Observatory, University of California, Santa Cruz, CA (United States)
- Department of Astronomy, University of Florida, Gainesville, FL (United States)
- Jet Propulsion Laboratory, Pasadena, CA (United States)
We present a study of the relative sizes of planets within the multiple-candidate systems discovered with the Kepler mission. We have compared the size of each planet to the size of every other planet within a given planetary system after correcting the sample for detection and geometric biases. We find that for planet pairs for which one or both objects are approximately Neptune-sized or larger, the larger planet is most often the planet with the longer period. No such size-location correlation is seen for pairs of planets when both planets are smaller than Neptune. Specifically, if at least one planet in a planet pair has a radius of {approx}> 3 R {sub Circled-Plus }, 68% {+-} 6% of the planet pairs have the inner planet smaller than the outer planet, while no preferred sequential ordering of the planets is observed if both planets in a pair are smaller than {approx}< 3 R {sub Circled-Plus }.
- OSTI ID:
- 22167196
- Journal Information:
- Astrophysical Journal, Vol. 763, Issue 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
Similar Records
DENSITY AND ECCENTRICITY OF KEPLER PLANETS
SPITZER OBSERVATIONS OF GJ 3470 b: A VERY LOW-DENSITY NEPTUNE-SIZE PLANET ORBITING A METAL-RICH M DWARF