WASP-121b optical phase curve Virtual Observatory Resource

Authors

1. Bourrier V.
2. Kitzmann D.
3. Kuntzer T.
4. Nascimbeni V.
5. Lendl M.
6. Lavie B.,Hoeijmakers H.J.
7. Pino L.
8. Ehrenreich D.
9. Heng K.
10. Allart R.
11. Cegla H.M,Dumusque X.
12. Melo C.
13. Astudillo-Defru N.
14. Caldwell D.A.
15. Cretignier M.,Giles H.
16. Henze C.E.
17. Jenkins J.
18. Lovis C.
19. Murgas F.
20. Pepe F.,Ricker G.R.
21. Rose M.E.
22. Seager S.
23. Segransan D.
24. Suarez-Mascareno A.,Udry S.
25. Vanderspek R.
26. Wyttenbach A.

Published by

CDS

Abstract

We present the analysis of TESS optical photometry of WASP-121b, which reveals the phase curve of this transiting ultra-hot Jupiter. Its hotspot is located at the sub-stellar point, showing inefficient heat transport from the dayside (2870+/-50K) to the nightside (<2500K at 3{sigma}) at the altitudes probed by TESS. The TESS eclipse depth, measured at the shortest wavelength to date for WASP-121b, confirms the strong deviation from blackbody planetary emission. Our atmospheric retrieval on the complete emission spectrum supports the presence of a temperature inversion, which can be explained by the presence of VO and possibly TiO and FeH. The strong planetary emission at short wavelengths could arise from an H^-^ continuum.

Keywords

1. multiple-stars
2. exoplanets
3. photometry

Bibliographic source Bibcode

2020A&A...637A..36B

See also HTML

https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/637/A36

IVOA Identifier IVOID

ivo://CDS.VizieR/J/A+A/637/A36

Document Object Identifer DOI

doi:10.26093/cds/vizier.36370036

Access

IVOA Table Access TAP

https://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).