Light curve of K2-292 (HD 119130) Virtual Observatory Resource

Authors

1. Luque R.
2. Nowak G.
3. Palle E.
4. Dai F.
5. Kaminski A.
6. Nagel E.
7. Hidalgo D.,Bauer F.
8. Lafarga M.
9. Livingston J.
10. Barragan O.
11. Hirano T.
12. Fridlund M.,Gandolfi D.
13. Justesen A.B.
14. Hjorth M.
15. Van Eylen V.
16. Winn J.N.
17. Esposito M.,Morales J.C.
18. Albrecht S.
19. Alonso R.
20. Amado P.J.
21. Beck P.
22. Caballero J.A.,Cabrera J.
23. Cochran W.D.
24. Csizmadia Sz.
25. Deeg H.
26. Eigmueller P.
27. Endl M.,Erikson A.
28. Fukui A.
29. Grziwa S.
30. Guenther E.W.
31. Hatzes A.P.
32. Knudstrup E.,Korth J.
33. Lam K.W.F.
34. Lund M.N.
35. Mathur S.
36. Montanes-Rodriguez P.,Narita N.
37. Nespral D.
38. Niraula P.
39. Paetzold M.
40. Persson C.M.,Prieto-Arranz J.
41. Quirrenbach A.
42. Rauer H.
43. Redfield S.
44. Reiners A.,Ribas I.
45. Smith A.M.S.

Published by

CDS

Abstract

We present the discovery and characterisation of a new transiting planet from Campaign 17 of the Kepler extended mission K2. The planet K2-292 b is a warm sub-Neptune on a 17-d orbit around a bright (V=9.9mag) solar-like G3 V star with a mass and radius of Ms=1.00+/-0.03M_{sun}_ and Rs=1.09+/-0.03R_{sun}_ respectively. We model simultaneously the K2 photometry and CARMENES spectroscopic data and derive a radius of Rp=2.63_-0.10+^+0.12^R_{earth}_ and mass of Mp=24.5_-4.4_^+4.4^M_{earth}_, yielding a mean density of 7.4_-1.5_^+1.6^g/cm^3^, which makes it one of the densest sub-Neptune planets known to date. We also detect a linear trend in radial velocities of HD 119130 that suggests a long-period companion with a minimum mass on the order of 33M_{earth}_. If confirmed, it would support a formation scenario of K2-292 b by migration caused by Kozai-Lidov oscillations.

Keywords

1. multiple-stars
2. exoplanets
3. photometry

Bibliographic source Bibcode

2019A&A...623A.114L

See also HTML

https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/623/A114

IVOA Identifier IVOID

ivo://CDS.VizieR/J/A+A/623/A114

Document Object Identifer DOI

doi:10.26093/cds/vizier.36230114

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http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/623/A114

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