Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7735e..94y&link_type=abstract
Ground-based and Airborne Instrumentation for Astronomy III. Edited by McLean, Ian S.; Ramsay, Suzanne K.; Takami, Hideki. Pro
Astronomy and Astrophysics
Astronomy
Scientific paper
The search for extrasolar planets is an exciting new field of astronomy. Since detection of a planet orbiting the sun-like star 51 Peg,1 the field of planet finding has pushed the limits of sensitivity and accuracy in astronomical photometry and spectroscopy. To date 455 exoplanets have been detected*, of which the radial velocity technique is responsible for nearly 80%.2 Radial velocity measurements are also an important complement to photometric missions such as Kepler and CoRoT, which survey vast numbers of stars simultaneously but which require follow up measurements for positive identification of planets. The chief objective in the search for exoplanets is the identification of habitable Earth-like planets in close proximity to our solar system. Of the currently detected exoplanets, only a few are Earth-like,3 the vast majority being giants in close orbits. While it is possible that these planets are the most common type, it is likely that an inherent selection bias in planet finding techniques is the cause. Simply, large radial velocity shifts and high contrast occultations are the most detectable by radial velocity spectroscopy and photometry, and so we primarily observe planets capable of inducing them.
Diddams Scott A.
Nave Gillian
Osterman Steven
Quinlan Franklyn
Ycas Gabriel G.
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