Edasich dK star
Number of posts : 2295 Location : Tau Ceti g - Mid Latitudes Registration date : 2008-06-02
| Subject: Planets Around the K-Giants BD+20 274 and HD 219415 3rd July 2012, 3:08 am | |
| Planets Around the K-Giants BD+20 274 and HD 219415 - Quote :
- We present the discovery of planet-mass companions to two giant stars by the ongoing Penn State- Toru\'n Planet Search (PTPS) conducted with the 9.2 m Hobby-Eberly Telescope. The less massive of these stars, K5-giant BD+20 274, has a 4.2 MJ minimum mass planet orbiting the star at a 578-day period and a more distant, likely stellar-mass companion. The best currently available model of the planet orbiting the K0-giant HD 219415 points to a Jupiter-mass companion in a 5.7-year, eccentric orbit around the star, making it the longest period planet yet detected by our survey. This planet has an amplitude of \sim18 m/s, comparable to the median radial velocity (RV) "jitter", typical of giant stars.
Remember BD+20° 274 b? Now it's confirmed. | |
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Lazarus dF star
Number of posts : 3337 Registration date : 2008-06-12
| Subject: Penn State-Toruń Planet Search: planets around 2 K-giants 3rd July 2012, 3:11 am | |
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Edasich dK star
Number of posts : 2295 Location : Tau Ceti g - Mid Latitudes Registration date : 2008-06-02
| Subject: Re: Planets Around the K-Giants BD+20 274 and HD 219415 3rd July 2012, 4:33 am | |
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Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: Planets Around the K-Giants BD+20 274 and HD 219415 3rd July 2012, 5:36 am | |
| Merged _________________ Caps Lock: Cruise control for 'Cool'!
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Lazarus dF star
Number of posts : 3337 Registration date : 2008-06-12
| Subject: Re: Planets Around the K-Giants BD+20 274 and HD 219415 3rd July 2012, 2:56 pm | |
| Bleargh crosspost | |
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jyril Planetesimal
Number of posts : 133 Registration date : 2008-06-09
| Subject: Re: Planets Around the K-Giants BD+20 274 and HD 219415 3rd July 2012, 6:00 pm | |
| Sign of an active forum... _________________ The universe is not only stranger than we imagine, it is stranger than we can imagine.
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tommi59 Jovian
Number of posts : 596 Age : 46 Location : Baile Atha Cliath Registration date : 2010-07-31
| Subject: Re: Planets Around the K-Giants BD+20 274 and HD 219415 15th August 2012, 7:00 am | |
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Last edited by tommi59 on 15th August 2012, 9:58 am; edited 1 time in total | |
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Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: Planets Around the K-Giants BD+20 274 and HD 219415 15th August 2012, 7:54 am | |
| _________________ Caps Lock: Cruise control for 'Cool'!
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| Subject: Re: Planets Around the K-Giants BD+20 274 and HD 219415 | |
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