Searching for Jupiter Analogues: Detection Limits of the McDonald Observatory Harlan J. Smith 2.7m Telescope Radial Velocity Planet Search

Details Searching for Jupiter Analogues: Detection Limits of the McDonald Observatory Harlan J. Smith 2.7m Telescope Radial Velocity Planet Search Searching for Jupiter Analogues: Detection Limits of the McDonald Observatory Harlan J. Smith 2.7m Telescope Radial Velocity Planet Search

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21924503c&link_type=abstract

American Astronomical Society, AAS Meeting #219, #245.03

Astronomy and Astrophysics

Astronomy

Scientific paper

The McDonald Observatory Planet Search has recorded twelve years of high precision radial velocity measurements. Now it is possible to test the frequency of Jupiter analogues in the database. 81 stars with a twelve-year timeline and no known companions were selected, and simulations were performed to test our sensitivity to the radial velocity signals of Jupiter analogues. Our criteria for a Jupiter analogue are a planetary companion of a sun-like star with a mass between .8 to 4 Jupiter masses, at a distance ranging from 4 to 5.5 AU. A true Jupiter signal is near the limit of our observations at a distance of 5AU with a period of 4330 days, or 11.9 years. The results of these simulations show the database's sensitivity to Jupiter analogues and the frequency of Jupiter analogues. The results demonstrate that the McDonald Observatory Planet Search is a valuable source of high precision radial velocity measurements, and that the continuation of the program is beneficial to the discovery and study of extra solar planets.

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