Okayama Planet Search Program: Difference between revisions

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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|ksi 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).
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).


==Discoveries==
==Discoveries==
{| class="wikitable sortable"
*[[18 Delphini b]]
|+Planets discovered
*[[Xi Aquilae b]]
!Name
*[[41 Lyncis b]]
!Mass (<var>M</var><sub>J</sub>)
*[[81 Ceti b]]<ref name="Sato2008"/>
!Discovery date
*[[14 Andromedae b]]<ref name="Sato2008"/>
!Refs
*[[6 Lyncis b]]<ref name="Sato2008"/>
|-
|[[18 Delphini b]]
|10.3
|2008
|<ref name="Sato2008" />
|-
|[[Xi Aquilae b]]
|2.8
|2008
|<ref name="Sato2008" />
|-
|[[41 Lyncis b]]
|2.7
|2008
|<ref name="Sato2008" />
|-
|[[81 Ceti b]]
|5.3
|2008
|<ref name="Sato2008" />
|-
|[[14 Andromedae b]]
|4.8
|2008
|<ref name="Sato2008" />
|-
|[[6 Lyncis b]]
|2.01
|2008
|<ref name="Sato2008" />
|}
*


==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

Planets discovered
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

References

  1. ^ 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.