Okayama Planet Search Program

The Okayama Planet Search Program was started in 2001 with the goal of spectroscopically searching for planetary systems around stars. It reported on the detection of 3 new extrasolar planets: (18 Delphini b, ksi Aql b, and 41 Lyncis b), around intermediate-mass G and K giants 18 Delphini, Xi Aquilae, and HD 81688. Also, it updated the orbital parameters of HD 104985 b, the first planet discovered around the G giants from the survey, by using the data collected during the past six years. Since 2001, it has been conducting a precise Doppler survey of about 300 G and K giants using a 1.88m telescope, the High Dispersion Echelle Spectrograph (HIDES), and an iodine absorption cell I2 cell at the Okayama Astrophysical Observatory (OAO). Use of numerical calculations suggests that Jupiter-mass planets within about (distance range) ^+0.5
_−0.25 AU in function of the metallicity and adopted models).

Observatory

• Okayama Astrophysical Observatory, Kurashiki in Japan

References

• "Okayama Astrophysical Observatory Homepage". http://www.oao.nao.ac.jp. Retrieved 2008-10-11. {{cite web}}: External link in |work= (help)
• "Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, Xi Aquilae, and HD81688" (PDF). http://www.oao.nao.ac.jp. Retrieved 2008-10-11. {{cite web}}: External link in |work= (help)
• "telescope". http://www.oao.nao.ac.jp. Retrieved 2008-10-11. {{cite web}}: External link in |work= (help)