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Log inCircumbinary planets by RV
Circumbinary planets by RV
by Lazarus on Tue Sep 08, 2009 3:37 pm
Don't think this one got posted here...
Title: The Radial Velocity TATOOINE Search for Circumbinary Planets: Planet Detection Limits for a Sample of Double-lined Binary Stars - Initial Results from Keck I/Hires, Shane/CAT/Hamspec and TNG/Sarg Observations
No planets detected, but two things are impressive here: one, that radial velocity measurements of SB2 spectroscopic binaries can be made sufficiently accurately to detect circumbinary planets, two, that it is possible to come up with a relevant acronym for TATOOINE.
Systems surveyed:
Title: The Radial Velocity TATOOINE Search for Circumbinary Planets: Planet Detection Limits for a Sample of Double-lined Binary Stars - Initial Results from Keck I/Hires, Shane/CAT/Hamspec and TNG/Sarg Observations
No planets detected, but two things are impressive here: one, that radial velocity measurements of SB2 spectroscopic binaries can be made sufficiently accurately to detect circumbinary planets, two, that it is possible to come up with a relevant acronym for TATOOINE.
Systems surveyed:
- HD 9939
- HD 13974 (Delta Trianguli)
- HD 47415
- HD 78418 (75 Cancri)
- HD 86146 (19 Leonis Minoris)
- HD 195987
- HD 210027 (Iota Pegasi)
- HD 214686
- HD 221950 (16 Piscium)
- HD 282975
Lazarus- Jovian
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Re: Circumbinary planets by RV
by NuclearVacuum on Tue Sep 08, 2009 8:17 pm
Wait, Maciej Konacki?? Didn't he discover the infamous "HD 188756 Ab"? (talk about irony). But anyway, I can't wait for them to discover more circumbinary planets.
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NuclearVacuum- Planetesimal
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Re: Circumbinary planets by RV
by Lazarus on Wed Sep 09, 2009 1:05 pm
Quite a few planet hunters have announced detections that were later disproven...
In any case Konacki has among his credits lead author on the discovery papers for OGLE-TR-56b, OGLE-TR-113b, OGLE-TR-10b...
In any case Konacki has among his credits lead author on the discovery papers for OGLE-TR-56b, OGLE-TR-113b, OGLE-TR-10b...
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Re: Circumbinary planets by RV
by Edasich on Wed Sep 09, 2009 1:19 pm
However the study of Delta Trianguli in the research paper should make NuclearVacuum happy, shouldn't it? 
Anyway it seems no planet with 0.3-10 Mj is orbiting within 1-2 AUs from each star.
Anyway it seems no planet with 0.3-10 Mj is orbiting within 1-2 AUs from each star.
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Re: Circumbinary planets by RV
by NuclearVacuum on Wed Sep 09, 2009 2:57 pm
Edasich wrote:However the study of Delta Trianguli in the research paper should make NuclearVacuum happy, shouldn't it?
Anyway it seems no planet with 0.3-10 Mj is orbiting within 1-2 AUs from each star.
It does make me happy!
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Re: Circumbinary planets by RV
by Lazarus on Mon Oct 26, 2009 2:25 pm
More from the TATOOINE survey: orbital elements for some binary stars, also limits on planets for HD 123999 (12 Boötis), HD 160922 (Omega Draconis) and HD 200077.
arXiv: High precision orbital and physical parameters of double-lined spectroscopic binary stars - HD78418, HD123999, HD160922, HD200077 and HD210027
arXiv: High precision orbital and physical parameters of double-lined spectroscopic binary stars - HD78418, HD123999, HD160922, HD200077 and HD210027
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