| Planets in the Praesepe Cluster | |
|
|
Author | Message |
---|
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Planets in the Praesepe Cluster 4th July 2012, 8:51 pm | |
| Two 'b's in the Beehive: The Discovery of the First Hot Jupiters in an Open Cluster http://arxiv.org/abs/1207.0818 - Quote :
- We present the discovery of two giant planets orbiting stars in Praesepe (also known as the Beehive Cluster), the first known hot Jupiters in an open cluster. Pr0201b orbits a V=10.52 late F dwarf with a period of 4.4264 +/- 0.0070 days and has a minimum mass of 0.540 +/- 0.039 Mjup, and Pr0211b orbits a V=12.06 late G dwarf with a period of 2.1451 +/- 0.0012 days and has a minimum mass of 1.844 +/- 0.064 Mjup. Because they reside in a cluster, the ages of these planets are amongst the best-determined of any planet outside our own solar system. As we endeavor to learn more about the frequency and characteristics of planets, the environment in which most stars form -- open clusters like Praesepe -- may provide essential clues to this end. This discovery will allow, for the first time, a direct estimate of the short-period giant planet frequency in open clusters.
_________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Lazarus dF star
Number of posts : 3337 Registration date : 2008-06-12
| Subject: Re: Planets in the Praesepe Cluster 5th July 2012, 2:30 am | |
| | |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: Planets in the Praesepe Cluster 14th September 2012, 2:25 pm | |
| _________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Lazarus dF star
Number of posts : 3337 Registration date : 2008-06-12
| Subject: Re: Planets in the Praesepe Cluster 15th September 2012, 6:02 pm | |
| | |
|
| |
Sunchaser Planetesimal
Number of posts : 133 Age : 53 Registration date : 2011-12-23
| Subject: Re: Planets in the Praesepe Cluster 16th September 2012, 9:37 am | |
| WHOO-HOOOOO!!!
-M-
But can you imagine the night skies there? | |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: Planets in the Praesepe Cluster 16th September 2012, 3:38 pm | |
| - Sunchaser wrote:
- But can you imagine the night skies there?
Lots of light pollution from glowing winds from the dayside _________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: Planets in the Praesepe Cluster 1st February 2016, 9:54 pm | |
| A second, long-period giant planet around Pr0211. The GAPS programme with HARPS-N at TNG XI. Pr~0211 in M~44: the first multi-planet system in an open cluster http://arxiv.org/abs/1602.00009 _________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Edasich dK star
Number of posts : 2296 Location : Tau Ceti g - Mid Latitudes Registration date : 2008-06-02
| Subject: Re: Planets in the Praesepe Cluster 30th March 2016, 12:17 pm | |
| Finally Pr 0211 c is listed at EPE: http://exoplanet.eu/catalog/pr_0211_c/Anyway might anyone notify EPE webmaster that four double entries are hindering actual exoplanet count there? Pr 0211 b, HD 4732 b & c and KOI-2828 b are listed twice. | |
|
| |
Lazarus dF star
Number of posts : 3337 Registration date : 2008-06-12
| Subject: Re: Planets in the Praesepe Cluster 30th March 2016, 3:10 pm | |
| Personally I think it more worthwhile to try and improve the Open Exoplanet Catalogue... | |
|
| |
Sponsored content
| Subject: Re: Planets in the Praesepe Cluster | |
| |
|
| |
| Planets in the Praesepe Cluster | |
|