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Extrasolar Visions II

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 18 New Jovians around retired A stars

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Sirius_Alpha
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PostSubject: 18 New Jovians around retired A stars   18 New Jovians around retired A stars Empty22nd August 2011, 8:15 pm

Retired A Stars and Their Companions: Eighteen New Jovian Planets
http://arxiv.org/abs/1108.4205

Quote :
We report the detection of eighteen Jovian planets discovered as part of our Doppler survey of subgiant stars at Keck Observatory, with follow-up Doppler and photometric observations made at McDonald and Fairborn Observatories, respectively. The host stars have masses 0.927 < Mstar /Msun < 1.95, radii 2.5 < Rstar/Rsun < 8.7, and metallicities -0.46 < [Fe/H] < +0.30. The planets have minimum masses 0.9 MJup < MP sin i <3 MJup and semima jor axes a > 0.76 AU. These detections represent a 50% increase in the number of planets known to orbit stars more massive than 1.5 Msun and provide valuable additional information about the properties of planets around stars more massive than the Sun.

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Edasich
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PostSubject: Re: 18 New Jovians around retired A stars   18 New Jovians around retired A stars Empty23rd August 2011, 3:30 am

Exaggerated discovery!! Very Happy
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Lazarus
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PostSubject: Re: 18 New Jovians around retired A stars   18 New Jovians around retired A stars Empty23rd August 2011, 3:29 pm

Nice to see some hints that some of these are in multiplanet systems too.
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Sirius_Alpha
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PostSubject: Re: 18 New Jovians around retired A stars   18 New Jovians around retired A stars Empty2nd December 2011, 8:05 pm


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Edasich
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PostSubject: Re: 18 New Jovians around retired A stars   18 New Jovians around retired A stars Empty3rd December 2011, 6:32 am

A bit of delay. Or is it we know things much earlier?

However we want more, more, more.... Laughing
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