Is the Atmosphere of the Ultra-hot Jupiter WASP-121 b Variable?

Skinner, J. W. (author): Brandeis University,California Institute of Technology (Caltech)

Nattila, J. (author): Columbia University in the City of New York,Flatiron Institute

Edwards, B. (author): Netherlands Institute for Space Research (SRON),University College London (UCL)

Mikal-Evans, T. (author): Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)

Joshua, M. (author)

Morello, Giuseppe, 1989 (author): Chalmers tekniska högskola,Chalmers University of Technology

Skaf, N. (author)

Venot, O. (author)

(creator_code:org_t)

2024
2024
English.
In: Astrophysical Journal, Supplement Series. - 1538-4365 .- 0067-0049. ; 270:2

Related links:: https://research.cha... (primary) (free); show more...; https://doi.org/10.3...; https://research.cha...; show less...

Abstract Subject headings

We present a comprehensive analysis of the Hubble Space Telescope observations of the atmosphere of WASP-121 b, an ultra-hot Jupiter. After reducing the transit, eclipse, and phase-curve observations with a uniform methodology and addressing the biases from instrument systematics, sophisticated atmospheric retrievals are used to extract robust constraints on the thermal structure, chemistry, and cloud properties of the atmosphere. Our analysis shows that the observations are consistent with a strong thermal inversion beginning at similar to 104 Pa on the dayside, solar to subsolar metallicity Z (i.e., -0.77

By the author/editor: Changeat, Q.; Skinner, J. W.; Cho, J. y-k.; Nattila, J.; Waldmann, I. P.; Al-Refaie, A. F.; show more...; Dyrek, A.; Edwards, B.; Mikal-Evans, T.; Joshua, M.; Morello, Giusepp ...; Skaf, N.; Tsiaras, A.; Venot, O.; Yip, K. H.; show less...

About the subject

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