2MASS J01033563-5515561 - Directly imaged circumbinary super-Jupiter companion

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2MASS J01033563-5515561 - Directly imaged circumbinary super-Jupiter companion

Post by Sirius_Alpha on 19th March 2013, 8:41 pm

Direct imaging discovery of 12-14 Jupiter mass object orbiting a young binary system of very low-mass stars
http://arxiv.org/abs/1303.4525

Context. Though only a handful of extrasolar planets have been discovered via direct imaging, each of these discoveries had tremendous impact on our understanding of planetary formation, stellar formation and cool atmosphere physics. Aims. Since many of these newly imaged giant planets orbit massive A or even B stars we investigated whether giant planets could be found orbiting low-mass stars at large separations. Methods. We have been conducting an adaptive optic imaging survey to search for planetary-mass companions of young M dwarfs of the solar neigbourhood, to probe different initial conditions of planetary formation. Results. We report here the direct imaging discovery of 2MASS J01033563-5515561(AB)b, a 12-14 MJup companion at a projected separation of 84 AU from a pair of young late M stars, with which it shares proper motion. We also detected a Keplerian-compatible orbital motion. Conclusions. This young L-type object at planet/brown dwarf mass boundary is the ?first ever imaged around a binary system at a separation compatible with formation in a disc.

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Re: 2MASS J01033563-5515561 - Directly imaged circumbinary super-Jupiter companion

Post by Lazarus on 20th March 2013, 2:38 pm

Quite a difficult one to figure out in terms of both mass ratio and separation:
In any case, the discovery of 2MASS0103(AB)b brings most current stellar and planetary formation theories to their limits while others, such as core-accretion, can probably be excluded. The very existence of such a peculiar system therefore provides a very valuable test case against which current and future stellar and planetary formation theoretical models can be tested.
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Re: 2MASS J01033563-5515561 - Directly imaged circumbinary super-Jupiter companion

Post by Lazarus on 26th March 2013, 5:33 pm

Press release with obligatory George Lucas promo
http://spaceref.com/exoplanets/direct-imaging-of-tatooine.html
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Re: 2MASS J01033563-5515561 - Directly imaged circumbinary super-Jupiter companion

Post by Edasich on 27th March 2013, 4:25 am

Has every planet with two stars to be dubbed as "Tatooine", even if it has nothing to do with that fictional world in terms of orbital parameters and planetary mass? Laughing
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Re: 2MASS J01033563-5515561 - Directly imaged circumbinary super-Jupiter companion

Post by Lazarus on 13th April 2013, 6:00 pm

Sure, same as popular science articles can't mention a particular Saturnian satellite without also bringing up a certain fictional space station, and some wit saying "that's no moon" in the comment threads.
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Re: 2MASS J01033563-5515561 - Directly imaged circumbinary super-Jupiter companion

Post by Led_Zep on 3rd May 2013, 5:31 pm

http://www.aanda.org/index.php?option=com_article&access=doi&doi=10.1051/0004-6361/201321169&Itemid=129

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Re: 2MASS J01033563-5515561 - Directly imaged circumbinary super-Jupiter companion

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