Okayama Planet Search Program: Difference between revisions
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Revision as of 12:23, 31 October 2008
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Okayama Planet Search Program was started in 2001, spectroscopically searching for planetary systems around stars, reporting on the detection of 3 new extrasolar planets (18 Delphini b, Xi Aquilae|Xi Aql b, HD 81688b) around intermediate-mass G and K giants (18 Delphini, Xi Aql, HD 81688). Also, it updated the orbital parameters of HD 104985 b, the first planet discovered around G giants from our 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 - the internal statistical error can be very small.) at Okayama Astrophysical Observatory (OAO), for precise radial velocity measurements. Use of numerical calculations suggest that Jupiter-mass planets within about (distance range) +0.5
−0.25 AU in fuction of the metallicity and adopted models).
Observatory
Reference
- "Okayama Astrophysical Observatory Homepage". http://www.oao.nao.ac.jp. Retrieved 2008-10-11.
{{cite web}}: External link in|work= - "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= - "telescope". http://www.oao.nao.ac.jp. Retrieved 2008-10-11.
{{cite web}}: External link in|work=
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