Accession Number : ADA559102


Title :   Kepler Planet-Detection Mission: Introduction and First Results


Descriptive Note : Journal article


Corporate Author : NAVAL OBSERVATORY FLAGSTAFF AZ


Personal Author(s) : Borucki, William J ; Koch, David ; Basri, Gibor ; Batalha, Natalie ; Brown, Timothy ; Caldwell, Douglas ; Caldwell, John ; Christensen-Dalsgaard, Joergen ; Cochran, William D ; DeVore, Edna ; Dunham, Edward W ; Dupree, Andrea K ; Gautier, III, Thomas N ; Geary, John C ; Gilliland, Ronald ; Gould, Alan ; Howell, Steve B ; Jenkins, Jon M ; Kondo, Yoji ; Latham, David W


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a559102.pdf


Report Date : 19 Feb 2010


Pagination or Media Count : 6


Abstract : The Kepler mission was designed to determine the frequency of Earth-sized planets in and near the habitable zone of Sun-like stars. The habitable zone is the region where planetary temperatures are suitable for water to exist on a planet's surface. During the first 6 weeks of observations, Kepler monitored 156,000 stars, and five new exoplanets with sizes between 0.37 and 1.6 Jupiter radii and orbital periods from 3.2 to 4.9 days were discovered. The density of the Neptune-sized Kepler-4b is similar to that of Neptune and GJ 436b, even though the irradiation level is 800,000 times higher. Kepler-7b is one of the lowest-density planets (0.17 gram per cubic centimeter) yet detected. Kepler-5b, -6b, and -8b confirm the existence of planets with densities lower than those predicted for gas giant planets.


Descriptors :   *PLANETS , ALBEDO , DENSITY , MASS , ORBITS , PHOTOMETERS , RADIUS(MEASURE) , SPACE PROBES , SPACECRAFT , SPECTROMETERS , STARS , THERMAL RADIATION


Subject Categories : Astronomy


Distribution Statement : APPROVED FOR PUBLIC RELEASE