Photometry and radial velocities of K2-131 Virtual Observatory Resource

Authors

1. Dai F.
2. Winn J.N.
3. Gandolfi D.
4. Wang S.X.
5. Teske J.K.
6. Burt J.
7. Albrecht S.,Barragan O.
8. Cochran W.D.
9. Endl M.
10. Fridlund M.
11. Hatzes A.P.
12. Hirano T.,Hirsch L.A.
13. Johnson M.C.
14. Bo Justesen A.
15. Livingston J.
16. Persson C.M.,Prieto-Arranz J.
17. Vanderburg A.
18. Alonso R.
19. Antoniciello G.
20. Arriagada P.,Butler R.P.
21. Cabrera J.
22. Crane J.D.
23. Cusano F.
24. Csizmadia S.
25. Deeg H.,Dieterich S.B.
26. Eigmuller P.
27. Erikson A.
28. Everett M.E.
29. Fukui A.
30. Grziwa S.,Guenther E.W.
31. Henry G.W.
32. Howell S.B.
33. Johnson J.A.
34. Korth J.
35. Kuzuhara M.,Narita N.
36. Nespral D.
37. Nowak G.
38. Palle E.
39. Patzold M.
40. Rauer H.,Rodriguez P.M.
41. Shectman S.A.
42. Smith A.M.S.
43. Thompson I.B.
44. Van Eylen V.,Williamson M.W.
45. Wittenmyer R.A.

Published by

CDS

Abstract

We report the discovery of a new ultra-short-period planet and summarize the properties of all such planets for which the mass and radius have been measured. The new planet, K2-131b, was discovered in K2 Campaign 10. It has a radius of 1.81_-0.12_^+0.16^ R_{Earth}_ and orbits a G dwarf with a period of 8.9 hr. Radial velocities obtained with Magellan/PFS and TNG/HARPS-N show evidence for stellar activity along with orbital motion. We determined the planetary mass using two different methods: (1) the "floating chunk offset" method, based only on changes in velocity observed on the same night; and (2) a Gaussian process regression based on both the radial velocity and photometric time series. The results are consistent and lead to a mass measurement of 6.5+/-1.6 M_{Earth}_ and a mean density of 6.0_-2.7_^+3.0^ g/cm^3^.

Keywords

1. exoplanets
2. dwarf-stars
3. ccd-photometry
4. radial-velocity

Bibliographic source Bibcode

2017AJ....154..226D

See also HTML

https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/154/226

IVOA Identifier IVOID

ivo://CDS.VizieR/J/AJ/154/226

Document Object Identifer DOI

doi:10.26093/cds/vizier.51540226

Access

Web browser access HTML

https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/154/226
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/154/226
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/154/226

IVOA Table Access TAP

https://tapvizier.cds.unistra.fr/TAPVizieR/tap
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