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Extrasolar Visions II

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 Mini-Neptunes in NGC 6811

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Lazarus
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Number of posts : 3337
Registration date : 2008-06-12

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PostSubject: Mini-Neptunes in NGC 6811   Mini-Neptunes in NGC 6811 Empty26th June 2013, 2:57 pm

Was wondering if Kepler would spot any planets in the open clusters in its field-of-view...

Space.com: 'Mini-Neptune' Alien Planets in Star Cluster Surprise Scientists
http://www.space.com/21729-mini-neptune-alien-planets-discovered.html

Kepler-66b and Kepler-67b orbit stars in the open cluster NGC 6811.
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Edasich
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dK star
Edasich


Number of posts : 2285
Location : Tau Ceti g - Mid Latitudes
Registration date : 2008-06-02

Mini-Neptunes in NGC 6811 Empty
PostSubject: Re: Mini-Neptunes in NGC 6811   Mini-Neptunes in NGC 6811 Empty26th June 2013, 3:55 pm

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Lazarus
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Number of posts : 3337
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Mini-Neptunes in NGC 6811 Empty
PostSubject: Re: Mini-Neptunes in NGC 6811   Mini-Neptunes in NGC 6811 Empty26th June 2013, 4:07 pm

Thanks for finding those. Especially interesting point from the abstract about the similarities between cluster and field star planetary systems:
Quote :
This demonstrates that small planets can form and survive in a dense cluster environment, and implies that the frequency and properties of planets in open clusters are consistent with those of planets around field stars in the Galaxy.
Also, is it just me or is the discoveries table on the Kepler website dead?
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Stalker
Jovian
Jovian
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Number of posts : 540
Age : 33
Location : Paris, France
Registration date : 2008-06-16

Mini-Neptunes in NGC 6811 Empty
PostSubject: Re: Mini-Neptunes in NGC 6811   Mini-Neptunes in NGC 6811 Empty27th June 2013, 2:22 am

Has someone the data about this two planets? like a screenshot of the tables from Nature.

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tommi59
Jovian
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tommi59


Number of posts : 596
Age : 46
Location : Baile Atha Cliath
Registration date : 2010-07-31

Mini-Neptunes in NGC 6811 Empty
PostSubject: Re: Mini-Neptunes in NGC 6811   Mini-Neptunes in NGC 6811 Empty27th June 2013, 4:17 am

Planets have 15 and 17 days period are too hot ,but the views from them is rather magnificent and unforgettable
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Stalker
Jovian
Jovian
Stalker


Number of posts : 540
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PostSubject: Re: Mini-Neptunes in NGC 6811   Mini-Neptunes in NGC 6811 Empty27th June 2013, 10:48 am


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Sirius_Alpha
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PostSubject: Re: Mini-Neptunes in NGC 6811   Mini-Neptunes in NGC 6811 Empty27th June 2013, 11:55 am

Thanks, was waiting on actual orbit parameters for these planets. Smile

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Lazarus
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Number of posts : 3337
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Mini-Neptunes in NGC 6811 Empty
PostSubject: Re: Mini-Neptunes in NGC 6811   Mini-Neptunes in NGC 6811 Empty27th June 2013, 1:52 pm

I take it the masses quoted at EPE are upper limits of some kind?
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Stalker
Jovian
Jovian
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Number of posts : 540
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Mini-Neptunes in NGC 6811 Empty
PostSubject: Re: Mini-Neptunes in NGC 6811   Mini-Neptunes in NGC 6811 Empty27th June 2013, 1:57 pm

Yes i think.

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Lazarus
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Mini-Neptunes in NGC 6811 Empty
PostSubject: Re: Mini-Neptunes in NGC 6811   Mini-Neptunes in NGC 6811 Empty24th July 2013, 2:13 am

Now on arXiv:

The same frequency of planets inside and outside open clusters of stars
http://arxiv.org/abs/1307.5842
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Mini-Neptunes in NGC 6811
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