New M Dwarf Planetary Systems

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New M Dwarf Planetary Systems

Post by Sirius_Alpha on 3rd March 2014, 11:40 pm

Bayesian search for low-mass planets around nearby M dwarfs. Estimates for occurrence rate based on global detectability statistics
http://arxiv.org/abs/1403.0430

Planet candidates around GJ 27.1, GJ 160.2, GJ 180, GJ 229, GJ 422, GJ 682. Confirmation of two planets in GJ 433.

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Re: New M Dwarf Planetary Systems

Post by Edasich on 4th March 2014, 4:21 am

I notice GJ 229 too, the well-known brown dwarf host.
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Re: New M Dwarf Planetary Systems

Post by Led_Zep on 4th March 2014, 4:40 am

I donít remember if other planets have been discovered with TERRA-HARPS ?
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Re: New M Dwarf Planetary Systems

Post by Sirius_Alpha on 4th March 2014, 5:22 am


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Re: New M Dwarf Planetary Systems

Post by Led_Zep on 4th March 2014, 5:45 am

GJ 667C of course ! Thank you Sirius
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Re: New M Dwarf Planetary Systems

Post by Lazarus on 4th March 2014, 2:31 pm

Is there an orbital solution for Gliese 229B, or is the observation time too small for that?
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Re: New M Dwarf Planetary Systems

Post by Led_Zep on 4th March 2014, 8:51 pm

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Re: New M Dwarf Planetary Systems

Post by Lazarus on 6th March 2014, 2:06 pm

Another thing to note here is that Proxima Centauri (GJ 551) is among the potential additional signals, with periods of 332 and 2200 days. Whether these represent planets is not clear:
some of these signals might be false positives caused by noise, insufficient modelling, stellar activity, and/or instrumental artefacts.
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Re: New M Dwarf Planetary Systems

Post by Morpheus on 9th March 2014, 6:26 pm

Any planets around Proxima Centauri massive enough to create a noticeable Doppler shift can be hopefully detected this year through microlensing.

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