Bibliographic Details
| Title: |
Observed Properties of Extrasolar Planets. |
| Authors: |
Howard, Andrew W. |
| Source: |
Science (pre-March 2025). 5/3/2013, Vol. 340 Issue 6132, p572-576. 5p. |
| Subjects: |
Extrasolar planets, Planetary observations, Astronomical surveys, Diameters of planets, Protoplanetary disks, Extrasolar planetary orbits |
| Abstract: |
Observational surveys for extrasolar planets probe the diverse outcomes of planet formation and evolution. These surveys measure the frequency of planets with different masses, sizes, orbital characteristics, and host star properties. Small planets between the sizes of Earth and Neptune substantially outnumber Jupiter-sized planets. The survey measurements support the core accretion model, in which planets form by the accumulation of solids and then gas in protoplanetary disks. The diversity of exoplanetary characteristics demonstrates that most of the gross features of the solar system are one outcome in a continuum of possibilities. The most common class of planetary system detectable today consists of one or more planets approximately one to three times Earth's size orbiting within a fraction of the Earth-Sun distance. [ABSTRACT FROM AUTHOR] |
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| Database: |
Psychology and Behavioral Sciences Collection |
