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A low-mass exoplanet candidate detected by K2 transiting the Praesepe M dwarf JS 183

Abstract:

We report the discovery of a repeating photometric signal from a low-mass member of the Praesepe open cluster that we interpret as a Neptune-sized transiting planet. The star is JS 183 (HSHJ 163, EPIC 211916756), with T eff = 3325 ±100 K, M ∗ = 0.44 ±0.04 M o , R ∗ = 0.44 ±0.03 R o , and . The planet has an orbital period of 10.134588 days and a radius of R P = 0.32 ±0.02 R J . Since the star is faint at V = 16.5 and J = 13.3, we are unable to obtain a measured radial velocity orbit, but we c...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.3847/1538-3881/aa62ab

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Role:
Author
ORCID:
0000-0002-3827-8417
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Role:
Author
ORCID:
0000-0003-2851-3070
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Role:
Author
ORCID:
0000-0002-3656-6706
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Name:
Leverhulme Trust
Funding agency for:
Aigrain, S
Publisher:
IOP Publishing
Journal:
Astronomical Journal More from this journal
Volume:
153
Issue:
4
Article number:
177
Publication date:
2017-03-24
Acceptance date:
2017-02-05
DOI:
EISSN:
1538-3881
ISSN:
0004-6256
Keywords:
Pubs id:
pubs:688815
UUID:
uuid:cb9ee7b9-b01a-4e19-aec2-395d94ccdcf3
Local pid:
pubs:688815
Source identifiers:
688815
Deposit date:
2018-01-23

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