18 New Jovians around retired A stars

View previous topic View next topic Go down

18 New Jovians around retired A stars

Post by Sirius_Alpha on 22nd August 2011, 8:15 pm

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

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.

_________________
Caps Lock: Cruise control for 'Cool'!
avatar
Sirius_Alpha
Admin
Admin

Number of posts : 3494
Location : Earth
Registration date : 2008-04-06

View user profile http://solar-flux.forumandco.com/

Back to top Go down

Re: 18 New Jovians around retired A stars

Post by Edasich on 23rd August 2011, 3:30 am

Exaggerated discovery!! Very Happy
avatar
Edasich
dM star
dM star

Number of posts : 1517
Location : Tau Ceti g - Mid Latitudes
Registration date : 2008-06-02

View user profile

Back to top Go down

Re: 18 New Jovians around retired A stars

Post by Lazarus on 23rd August 2011, 3:29 pm

Nice to see some hints that some of these are in multiplanet systems too.
avatar
Lazarus
dG star
dG star

Number of posts : 2845
Registration date : 2008-06-12

View user profile

Back to top Go down

Re: 18 New Jovians around retired A stars

Post by Sirius_Alpha on 2nd December 2011, 8:05 pm


_________________
Caps Lock: Cruise control for 'Cool'!
avatar
Sirius_Alpha
Admin
Admin

Number of posts : 3494
Location : Earth
Registration date : 2008-04-06

View user profile http://solar-flux.forumandco.com/

Back to top Go down

Re: 18 New Jovians around retired A stars

Post by Edasich on 3rd December 2011, 6:32 am

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

However we want more, more, more.... Laughing
avatar
Edasich
dM star
dM star

Number of posts : 1517
Location : Tau Ceti g - Mid Latitudes
Registration date : 2008-06-02

View user profile

Back to top Go down

Re: 18 New Jovians around retired A stars

Post by Sponsored content


Sponsored content


Back to top Go down

View previous topic View next topic Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum