Photometric & spectroscopic obs. of TOI-954 and K2-329 Virtual Observatory Resource

Authors
  1. Sha L.
  2. Huang C.X.
  3. Shporer A.
  4. Rodriguez J.E.
  5. Vanderburg A.
  6. Brahm R.,Hagelberg J.
  7. Matthews E.C.
  8. Ziegler C.
  9. Livingston J.H.
  10. Stassun K.G.,Wright D.J.
  11. Crane J.D.
  12. Espinoza N.
  13. Bouchy F.
  14. Bakos G.A.
  15. Collins K.A.,Zhou G.
  16. Bieryla A.
  17. Hartman J.D.
  18. Wittenmyer R.A.
  19. Nielsen L.D.,Plavchan P.
  20. Bayliss D.
  21. Sarkis P.
  22. Tan T.-G.
  23. Cloutier R.
  24. Mancini L.,Jordan A.
  25. Wang S.
  26. Henning T.
  27. Narita N.
  28. Penev K.
  29. Teske J.K.
  30. Kane S.R.,Mann A.W.
  31. Addison B.C.
  32. Tamura M.
  33. Horner J.
  34. Barbieri M.
  35. Burt J.A.,Diaz M.R.
  36. Crossfield I.J.M.
  37. Dragomir D.
  38. Drass H.
  39. Feinstein A.D.,Zhang H.
  40. Hart R.
  41. Kielkopf J.F.
  42. Jensen E.L.N.
  43. Montet B.T.
  44. Ottoni G.,Schwarz R.P.
  45. Rojas F.
  46. Nespral D.
  47. Torres P.
  48. Mengel M.W.
  49. Udry S.,Zapata A.
  50. Snoddy E.
  51. Okumura J.
  52. Ricker G.R.
  53. Vanderspek R.K.
  54. Latham D.W.,Winn J.N.
  55. Seager S.
  56. Jenkins J.M.
  57. Colon K.D.
  58. Henze C.E.,Krishnamurthy A.
  59. Ting E.B.
  60. Vezie M.
  61. Villanueva S.
  62. Published by
    CDS
Abstract

We report the discovery of two short-period Saturn-mass planets, one transiting the G subgiant TOI-954 (TIC44792534, V=10.343, T=9.78) observed in TESS sectors 4 and 5 and one transiting the G dwarf K2-329 (EPIC246193072, V=12.70, K=10.67) observed in K2 campaigns 12 and 19. We confirm and characterize these two planets with a variety of ground-based archival and follow-up observations, including photometry, reconnaissance spectroscopy, precise radial velocity, and high-resolution imaging. Combining all available data, we find that TOI-954b has a radius of 0.852_-0.062_^+0.053^R_Jup_ and a mass of 0.174_-0.017_^+0.018^M_Jup_ and is in a 3.68day orbit, while K2-329b has a radius of 0.774_-0.024_^+0.026^R_Jup_ and a mass of 0.260_-0.022_^+0.020^M_Jup_ and is in a 12.46day orbit. As TOI-954b is 30 times more irradiated than K2-329b but more or less the same size, these two planets provide an opportunity to test whether irradiation leads to inflation of Saturn-mass planets and contribute to future comparative studies that explore Saturn-mass planets at contrasting points in their lifetimes.

Keywords
  1. exoplanets
  2. g-stars
  3. infrared-photometry
  4. visible-astronomy
  5. spectroscopy
  6. radial-velocity
  7. stellar-masses
  8. effective-temperature
Bibliographic source Bibcode
2021AJ....161...82S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/161/82
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/161/82
Document Object Identifer DOI
doi:10.26093/cds/vizier.51610082

Access

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History

2021-04-23T12:00:51Z
Resource record created
2021-04-23T12:00:51Z
Created
2021-07-05T12:32:43Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr