Radial velocities & light curves of KELT-24 Virtual Observatory Resource

Authors

1. Rodriguez J.E.
2. Eastman J.D.
3. Zhou G.
4. Quinn S.N.
5. Beatty T.G.
6. Penev K.,Johnson M.C.
7. Cargile P.A.
8. Latham D.W.
9. Bieryla A.
10. Collins K.A.,Dressing C.D.
11. Ciardi D.R.
12. Relles H.M.
13. Murawski G.
14. Nishiumi T.,Yonehara A.
15. Ishimaru R.
16. Yoshida F.
17. Gregorio J.
18. Lund M.B.
19. Stevens D.J.,Stassun K.G.
20. Gaudi B.S.
21. Colon K.D.
22. Pepper J.
23. Narita N.
24. Awiphan S.,Chuanraksasat P.
25. Benni P.
26. Zambelli R.
27. Garrison L.H.
28. Wilson M.L.,Cornachione M.A.
29. Wang S.X.
30. Labadie-Bartz J.
31. Rodriguez R.
32. Siverd R.J.,Yao X.
33. Bayliss D.
34. Berlind P.
35. Calkins M.L.
36. Christiansen J.L.,Cohen D.H.
37. Conti D.M.
38. Curtis I.A.
39. Depoy D.L.
40. Esquerdo G.A.
41. Evans P.,Feliz D.
42. Fulton B.J.
43. Holoien T.W.-S.
44. James D.J.
45. Jayasinghe T.,Jang-Condell H.
46. Jensen E.L.N.
47. Johnson J.A.
48. Joner M.D.
49. Khakpash S.,Kielkopf J.F.
50. Kuhn R.B.
51. Manner M.
52. Marshall J.L.
53. McLeod K.K.,McCrady N.
54. Oberst T.E.
55. Oelkers R.J.
56. Penny M.T.
57. Reed P.A.
58. Sliski D.H.,Shappee B.J.
59. Stephens D.C.
60. Stockdale C.
61. Tan T.-G.
62. Trueblood M.,Trueblood P.
63. Villanueva S.
64. Wittenmyer R.A.
65. Wright J.T.

Published by

CDS

Abstract

We present the discovery of KELT-24 b, a massive hot Jupiter orbiting a bright (V=8.3 mag, K=7.2 mag) young F-star with a period of 5.6 days. The host star, KELT-24 (HD 93148), has a T_eff_=6509_-49_^+50^ K, a mass of M_*_=1.460_-0.059_^+0.055^ M_{sun}_, a radius of R_*_=1.506+/-0.022 R_{sun}_, and an age of 0.78_-0.42_^+0.61^ Gyr. Its planetary companion (KELT-24 b) has a radius of R_P_=1.272+/-0.021 R_J_ and a mass of M_P_=5.18_-0.22_^+0.21^ M_J_, and from Doppler tomographic observations, we find that the planet's orbit is well-aligned to its host star's projected spin axis ({lambda}=2.6_-3.6_^+5.1^). The young age estimated for KELT-24 suggests that it only recently started to evolve from the zero-age main sequence. KELT-24 is the brightest star known to host a transiting giant planet with a period between 5 and 10 days. Although the circularization timescale is much longer than the age of the system, we do not detect a large eccentricity or significant misalignment that is expected from dynamical migration. The brightness of its host star and its moderate surface gravity make KELT-24b an intriguing target for detailed atmospheric characterization through spectroscopic emission measurements since it would bridge the current literature results that have primarily focused on lower mass hot Jupiters and a few brown dwarfs.

Keywords

1. F stars
2. Radial velocity
3. Photometry
4. Exoplanets

Bibliographic source Bibcode

2019AJ....158..197R

See also HTML

https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/158/197

IVOA Identifier IVOID

ivo://CDS.VizieR/J/AJ/158/197

Document Object Identifer DOI

doi:10.26093/cds/vizier.51580197

Access

Web browser access HTML

http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/158/197
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/158/197
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/158/197

IVOA Table Access TAP

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