Okayama Planet Search Program: Difference between revisions

From Wikipedia, the free encyclopedia
Content deleted Content added
MacGyverMagic (talk | contribs)
remove speedy tag
SmackBot (talk | contribs)
m Date maintenance tags and general fixes
Line 1: Line 1:
{{Copyedit|date=October 2008}}
{{copyedit}}


'''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 [[Stellar classification#Class_K|K giants]] ([[18 Delphini]], [[Xi Aquilae|Xi Aql]], [[HD 81688]]). Also, it updated the orbital parameters of [[HD 104985 b]], the first planet discovered around [[Stellar classification#Class_G|G giants]] from our survey, by using the data collected during the past six [[year]]s. 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|0.25}} [[AU]] in fuction of the metallicity and adopted models).
'''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 [[Stellar classification#Class_K|K giants]] ([[18 Delphini]], [[Xi Aquilae|Xi Aql]], [[HD 81688]]). Also, it updated the orbital parameters of [[HD 104985 b]], the first planet discovered around [[Stellar classification#Class_G|G giants]] from our survey, by using the data collected during the past six [[year]]s. 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|0.25}} [[AU]] in fuction of the metallicity and adopted models).



==Observatory ==
==Observatory ==
Line 8: Line 7:
* [[Okayama Astrophysical Observatory]], [[Kurashiki]] in [[Japan]]
* [[Okayama Astrophysical Observatory]], [[Kurashiki]] in [[Japan]]


==Reference==
==References==


* {{cite web | url=http://www.oao.nao.ac.jp/en/telescope/ | title=Okayama Astrophysical Observatory Homepage | work=http://www.oao.nao.ac.jp | accessdate=2008-10-11}}
* {{cite web | url=http://www.oao.nao.ac.jp/en/telescope/ | title=Okayama Astrophysical Observatory Homepage | work=http://www.oao.nao.ac.jp | accessdate=2008-10-11}}
Line 14: Line 13:
* {{cite web | url=http://www.oao.nao.ac.jp/en/telescope/abouttel188/| title=telescope | work=http://www.oao.nao.ac.jp | accessdate=2008-10-11}}
* {{cite web | url=http://www.oao.nao.ac.jp/en/telescope/abouttel188/| title=telescope | work=http://www.oao.nao.ac.jp | accessdate=2008-10-11}}


{{Uncategorizedstub|date=October 2008}}
{{uncat}}


{{astronomy-stub}}
{{astronomy-stub}}

Revision as of 16:16, 31 October 2008

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

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)