New Worlds on the Horizon: Earth-Sized Planets Close to Other Stars
arXiv:0710.2366 · doi:10.1126/science.1144358
Abstract
The search for habitable planets like Earth around other stars fulfils an ancient imperative to understand our origins and place in the cosmos. The past decade has seen the discovery of hundreds of planets, but nearly all are gas giants like Jupiter and Saturn. Recent advances in instrumentation and new missions are extending searches to planets the size of the Earth, but closer to their host stars. There are several possible ways such planets could form, and future observations will soon test those theories. Many of these planets we discover may be quite unlike Earth in their surface temperature and composition, but their study will nonetheless inform us about the process of planet formation and the frequency of Earth-like planets around other stars.
to appear in Science, October 12, 2007
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- Stellar Characterization of M-dwarfs from the APOGEE Survey: A Calibrator Sample for the M-dwarf Metallicities
- The Near-Ultraviolet Luminosity Function of Young, Early M-Type Dwarf Stars
- Terrestrial Planet Formation in Extra-Solar Planetary Systems
- Kinematics And Ellipsoidal Motion Of The Mid To Late M-Type Stars
- Habitable Zones for Earth-mass Planets in Multiple Planetary Systems