Okayama Planet Search Program

{{short description|Program that searches exoplanets around stars}}

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

class="wikitable sortable"

|+Planets discovered

!Name

!Mass (M_J)

!Discovery date

Arion

|10.3

|2008

Fortitudo

|2.8

|2008

Arkas

|2.7

|2008

81 Ceti b

|5.3

|2008

Spe

|4.8

|2008

6 Lyncis b

|2.01

|2008

Observatory

Okayama Astrophysical Observatory, Kurashiki in Japan

References

{{cite journal | title=Planetary Companions to Evolved Intermediate-Mass Stars: 14 Andromedae, 81 Ceti, 6 Lyncis, and HD167042 | url=http://pasj.asj.or.jp/v60/n6/600610/600610-frame.html | last1=Sato | first1=Bun'ei | last2=Toyota | first2=Eri | last3=Omiya | first3=Masashi | last4=Izumiura | first4=Hideyuki | last5=Kambe | first5=Eiji | last6=Masuda | first6=Seiji | last7=Takeda | first7=Yoichi | last8=Itoh | first8=Yoichi | last9=Ando | first9=Hiroyasu | last10=Yoshida | first10=Michitoshi | last11=Kokubo | first11=Eiichiro | last12=Ida | first12=Shigeru | display-authors=1 | journal=Publications of the Astronomical Society of Japan | volume=60 | issue=6 | pages=1317–1326 | year=2008 | arxiv=0807.0268 | bibcode=2008PASJ...60.1317S | doi=10.1093/pasj/60.6.1317| s2cid=67841762 }}
{{cite web | url=http://www.oao.nao.ac.jp/en/telescope/ | title=Okayama Astrophysical Observatory Homepage | work=oao.nao.ac.jp | access-date=2008-10-11}}
{{cite web | url=http://pasj.asj.or.jp/v60/n3/600314/600314.pdf | title=Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, Xi Aquilae, and HD81688 | work= www.oao.nao.ac.jp | access-date=2008-10-11}}
{{cite web | url=http://www.oao.nao.ac.jp/en/telescope/abouttel188/| title=telescope | work=oao.nao.ac.jp | access-date=2008-10-11}}

Category:Exoplanet search projects