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The '''Okayama Planet Search Program''' (OPSP) 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]], [[Xi Aquilae b| |
The '''Okayama Planet Search Program''' (OPSP) 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]], [[Xi Aquilae b|xi Aql b]], and [[41 Lyncis b]]), around intermediate-mass G and [[K star|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 star|G giants]] from the survey, by using the data collected during the past six years. Since 2001, it has been conducting a precise [[Doppler effect|Doppler]] [[Astronomical survey|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). |
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==Discoveries== |
==Discoveries== |
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{| class="wikitable sortable" |
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|+Planets discovered |
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!Name |
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!Mass (<var>M</var><sub>J</sub>) |
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!Discovery date |
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!Refs |
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|10.3 |
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|2008 |
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|- |
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|2.8 |
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|2008 |
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⚫ | |||
|- |
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|2.7 |
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|2008 |
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|- |
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|[[81 Ceti b]] |
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|5.3 |
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|2008 |
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|<ref name="Sato2008" /> |
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|[[14 Andromedae b]] |
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|4.8 |
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|2008 |
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|<ref name="Sato2008" /> |
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|- |
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|[[6 Lyncis b]] |
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|2.01 |
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|2008 |
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|<ref name="Sato2008" /> |
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|} |
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* |
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==Observatory == |
==Observatory == |
Revision as of 19:03, 13 January 2021
The Okayama Planet Search Program (OPSP) 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, xi 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).
Discoveries
Name | Mass (MJ) | Discovery date | Refs |
---|---|---|---|
18 Delphini b | 10.3 | 2008 | [1] |
Xi Aquilae b | 2.8 | 2008 | [1] |
41 Lyncis b | 2.7 | 2008 | [1] |
81 Ceti b | 5.3 | 2008 | [1] |
14 Andromedae b | 4.8 | 2008 | [1] |
6 Lyncis b | 2.01 | 2008 | [1] |
Observatory
- Okayama Astrophysical Observatory, Kurashiki in Japan
References
- ^ a b c d e f Sato, Bun'ei; et al. (2008). "Planetary Companions to Evolved Intermediate-Mass Stars: 14 Andromedae, 81 Ceti, 6 Lyncis, and HD167042". Publications of the Astronomical Society of Japan. 60 (6): 1317–1326. arXiv:0807.0268. Bibcode:2008PASJ...60.1317S. doi:10.1093/pasj/60.6.1317. S2CID 67841762.
- "Okayama Astrophysical Observatory Homepage". oao.nao.ac.jp. Retrieved 2008-10-11.
- "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
(help)|work=
- "telescope". oao.nao.ac.jp. Retrieved 2008-10-11.