Edasich
dK star
Number of posts : 2292
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 : 2292
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
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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 | |
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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 | |
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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 | |
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