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Extrasolar Visions II

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 GJ 887 : 2 planets

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Led_Zep
SuperJovian
SuperJovian
Led_Zep


Number of posts : 721
Location : France
Registration date : 2011-09-09

GJ 887 : 2 planets Empty
PostSubject: GJ 887 : 2 planets   GJ 887 : 2 planets Empty25th June 2020, 2:49 pm

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Edasich
dK star
dK star
Edasich


Number of posts : 2288
Location : Tau Ceti g - Mid Latitudes
Registration date : 2008-06-02

GJ 887 : 2 planets Empty
PostSubject: Re: GJ 887 : 2 planets   GJ 887 : 2 planets Empty25th June 2020, 3:48 pm

Lacaille 9352, another "cool neighbour" hosting planets! cheers
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tommi59
Jovian
Jovian
tommi59


Number of posts : 596
Age : 46
Location : Baile Atha Cliath
Registration date : 2010-07-31

GJ 887 : 2 planets Empty
PostSubject: Re: GJ 887 : 2 planets   GJ 887 : 2 planets Empty25th June 2020, 4:21 pm

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Sirius_Alpha
Admin
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Sirius_Alpha


Number of posts : 4320
Location : Earth
Registration date : 2008-04-06

GJ 887 : 2 planets Empty
PostSubject: Re: GJ 887 : 2 planets   GJ 887 : 2 planets Empty25th June 2020, 8:40 pm

The b and c planets are consistent with Tuomi, et al. (2019), but their third planet does not match the period of the candidate third signal in this new analysis.

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Lazarus
dF star
dF star



Number of posts : 3337
Registration date : 2008-06-12

GJ 887 : 2 planets Empty
PostSubject: Re: GJ 887 : 2 planets   GJ 887 : 2 planets Empty1st July 2020, 11:15 am

The discovery paper is now on arXiv: https://arxiv.org/abs/2006.16372
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Lazarus
dF star
dF star



Number of posts : 3337
Registration date : 2008-06-12

GJ 887 : 2 planets Empty
PostSubject: Re: GJ 887 : 2 planets   GJ 887 : 2 planets Empty31st July 2020, 7:21 am

Viewed in the ultraviolet, GJ 887 doesn't seem quite so quiescent...

Parke Loyd et al. "When 'Boring' Stars Flare: The Ultraviolet Activity of GJ 887, a Bright M Star Hosting Newly Discovered Planets"
https://iopscience.iop.org/article/10.3847/2515-5172/aba94a
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GJ 887 : 2 planets Empty
PostSubject: Re: GJ 887 : 2 planets   GJ 887 : 2 planets Empty

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