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 Post subject: Re: News
PostPosted: Mon, 16-12-13, 1:55 GMT 
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Kepler-91b: a planet at the end of its life. Planet and giant host star properties via light-curve variations
Lillo-Box, et al.

Kepler-91 b orbits extremely close to a red giant star which will expand into the planet's orbit in less than 55 Myr. The planet's orbit is eccentric (which is itself somewhat interesting), and at its closest point to the star, it is less than 1.32 stellar radii away from the stellar atmosphere.


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 Post subject: Re: News
PostPosted: Mon, 16-12-13, 19:35 GMT 
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Possible astrometric discovery of a substellar companion to the closest binary brown dwarf system WISE J104915.57-531906.1
Boffin, et al.

Using relative astronomy to determine the orbit of the nearby brown dwarfs in WISE J104915.57-531906.1 has allowed for the distance of this system to be further constrained as 2.020±0.019 pc. Interestingly, deviations in the Keplerian motion of the system are found possibly indicating the existence of a planetary companion. Since the astrometry of the two stars are relative to each other, it's not clear which star is host to the possible planet.


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 Post subject: Re: News
PostPosted: Tue, 17-12-13, 1:39 GMT 
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A Sub-Earth-Mass Moon Orbiting a Gas Giant Primary or a High Velocity Planetary System in the Galactic Bulge
Bennett, et al.

MOA-2011-BLG-262 is a microlensing event that can be modelled with several different configurations. One of the more interesting ones is a free-floating Jovian planet with a half-Earth-mass moon at 0.13 AU. Another, equally likely interpretation is a 0.11 solar-mass star with an 18 Earth-mass planet at just under 1 AU. Follow-up characterisation of the foreground system will be necessary to distinguish between solutions.


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 Post subject: Re: News
PostPosted: Fri, 03-01-14, 11:32 GMT 
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No evidence of the planet orbiting the extremely metal-poor extragalactic star HIP13044
M. I. Jones, J. S. Jenkins.

Non-detection of the planets at HIP 13044 and HIP 11952. Looks like there was a mistake in the barycentric correction.


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 Post subject: Re: News
PostPosted: Wed, 08-01-14, 2:44 GMT 
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The Hunt for Exomoons with Kepler (HEK): IV. A Search for Moons around Eight M-Dwarfs
Kipping, et al.

A search for moons using transit timing variations. No moons, but two planets at KOI-314 have their masses resolved, with one being a low-density Earth-mass planet.


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 Post subject: Re: News
PostPosted: Wed, 08-01-14, 4:13 GMT 
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for those that missed in in the news today
Phil Plait's blog
http://www.slate.com/blogs/bad_astronom ... orlds.html

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 Post subject: Re: News
PostPosted: Wed, 08-01-14, 10:15 GMT 
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MASSES, RADII, AND ORBITS OF SMALL KEPLER PLANETS: THE TRANSITION FROM GASEOUS TO ROCKY PLANETS
Marcy, et al.

Numerous new exoplanet candidates from Kepler confirmed by Doppler spectroscopy.


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 Post subject: Re: News
PostPosted: Fri, 10-01-14, 10:36 GMT 
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HATS-5b: A Transiting hot-Saturn from the HATSouth Survey
Zhou, et al.

A hot Saturn around a V=12.6 star.

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Limits on Stellar Companions to Exoplanet Host Stars With Eccentric Planets
Kane, et al.

A second, long-period planet at HD 4203. Evidence of a third planet at HD 168443.


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 Post subject: Re: News
PostPosted: Tue, 14-01-14, 10:31 GMT 
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WASP-103b: a new planet at the edge of tidal disruption
Gillon, et al.

A new hot Jupiter, this one particularly close to the Roche limit.

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Very Low-Density Planets around Kepler-51 Revealed with Transit Timing Variations and an Anomaly Similar to a Planet-Planet Eclipse Event
Masuda.

Transit timing variations of the three known planets in the system find very low densities for them.


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 Post subject: Re: News
PostPosted: Wed, 15-01-14, 11:15 GMT 
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Three Planetary Companions Around M67 Stars
Brucalassi, et al.

Planets discovered by HARPS around stars NGC 2682 SAND 364 (Also designated BD+12 1917), NGC 2682 YBP 1194, and NGC 2682 YBP 1514

They find the same frequency of planets inside open clusters as for field stars. One of the stars is a solar twin.


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 Post subject: Re: News
PostPosted: Sun, 26-01-14, 17:07 GMT 
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A new cold sub-Saturnian candidate planet orbiting GJ 221
Mikko Tuomi

A third planet at GJ 221 / BD-06°1339.


HAT-P-49b: A 1.7 MJ Planet Transiting a Bright 1.5 M⊙ F-Star
Bieryla, et al.

A new transiting hot Jupiter around a bright star.


The Anglo-Australian Planet Search. XXIII. Two New Jupiter Analogs
Wittenmyer, et al.

Long-period giant planets at HD 114613 and HD 154857, the latter of which is now a two-planet system.


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 Post subject: Re: News
PostPosted: Wed, 05-02-14, 2:48 GMT 
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SOPHIE velocimetry of Kepler transit candidates XI. Kepler-412 system: probing the properties of a new inflated hot Jupiter
Deleuil, et al.

Another hot Jupiter from Kepler.

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Kepler-413b: a slightly misaligned, Neptune-size transiting circumbinary planet
Kostov, et al.

Due to the slight inclination between the planet orbit plane and the circumbinary orbit plane, the planetary orbit precesses around the binary star, resulting in an irregular transit frequency. Press Release


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 Post subject: Re: News
PostPosted: Thu, 27-02-14, 10:15 GMT 
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Validation of Kepler's Multiple Planet Candidates. II: Refined Statistical Framework and Descriptions of Systems of Special Interest
Lissauer, et al.

Validation of Kepler's Multiple Planet Candidates. III: Light Curve Analysis & Announcement of Hundreds of New Multi-planet Systems
Rowe, et al.

A system with a single transiting planet candidate may be any number of astrophysical false positives, but a multi-planet candidate system is much more likely to be a genuine planetary system. The Kepler team use such statistical reasoning to validate hundreds of multi-planet systems.

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HATS-4b: A Dense Hot-Jupiter Transiting a Super Metal-Rich G Star
Brahm, et al.

A fairly dense hot Jupiter around a metal-rich star.


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 Post subject: Re: News
PostPosted: Fri, 28-02-14, 8:29 GMT 
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with the 700+ new Kepler planets

We are going to have to start to come up with textures for them

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 Post subject: Re: News
PostPosted: Tue, 04-03-14, 17:38 GMT 
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Bayesian search for low-mass planets around nearby M dwarfs. Estimates for occurrence rate based on global detectability statistics
Tuomi, et al.

Combining UVES and HARPS data, new planets around M dwarfs are identified. Three are in the HZ, but their m sin i are high enough to be mini-Neptunes/micro-Jovians/whatever these low-mass, low-density planets that Kepler found are. The ensemble of M dwarf planets found so far seem to imply that "M dwarfs are hosts to an abundance of low-mass planets and the occurrence rate of planets less massive than 10 M⊕ is of the order of one planet per star, possibly even greater."


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