GJ 849 b & c

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GJ 849 b & c

Post by Stalker on 23rd July 2013, 11:19 am

Paper submitted but not available, the two planets are already on EPE.
http://exoplanet.eu/catalog/hip_109388_b/
http://exoplanet.eu/catalog/hip_109388_c/

One of the closest stars to the sun
http://www.solstation.com/stars/gl849.htm

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Re: GJ 849 b & c

Post by Shellface on 23rd July 2013, 11:48 am

Well, that's just Gliese 849. b was announced by Butler et al. 2006, as the third Jovian planet orbiting an M-dwarf, and that's… still on the EPE…? Anyway, the announcement data showed a large downwards trend, which I guess now shows enough curvature to get a reasonably good constraint on its orbit.

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Re: GJ 849 b & c

Post by Lazarus on 23rd July 2013, 12:17 pm

Interesting that the referenced paper seems to be about imaging. Perhaps they have made a direct detection of the outer planet? (Though I have seen several examples of EPE referencing papers that have not got anything to do with the planet they are listed on.)

The Butler et al. (2006) paper notes that the system may be a good candidate for imaging attempts.


Last edited by Lazarus on 23rd July 2013, 12:23 pm; edited 1 time in total
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Re: GJ 849 b & c

Post by Stalker on 23rd July 2013, 12:22 pm

Imaging a RV planet? Badass (ಠ益ಠ)

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Re: GJ 849 b & c

Post by Lazarus on 23rd July 2013, 12:45 pm

That's the optimistic version. Not sure if the system is young enough that ~1 Jupiter mass planets would be bright enough to detect.

Other possibility is they say: no detection but here's some additional RV measurements which further constrain the second companion's properties...
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Re: GJ 849 b & c

Post by Sirius_Alpha on 23rd July 2013, 10:47 pm

I've changed the thread title to the more recognisable star designation.

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Re: GJ 849 b & c

Post by Lazarus on 24th July 2013, 2:11 am

The TRENDS High-Contrast Imaging Survey. IV. The Occurrence Rate of Giant Planets around M-Dwarfs
http://arxiv.org/abs/1307.5849

Other possibility is they say: no detection but here's some additional RV measurements which further constrain the second companion's properties...
This one
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Re: GJ 849 b & c

Post by Sirius_Alpha on 27th July 2013, 7:44 pm

EPE revised the name.
http://exoplanet.eu/catalog/gj_849_b/
http://exoplanet.eu/catalog/gj_849_c/

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