Earth and Planetary Astrophysics

Horizontal and vertical exoplanet thermal structure from a JWST spectroscopic eclipse map
Highly-irradiated giant exoplanets known as ‘‘ultra-hot Jupiters’’ are anticipated to exhibit large variations …
Ryan C. Challener, Megan Weiner Mansfield, Patricio E. Cubillos, Anjali A.~A. Piette, Louis-Philippe Coulombe, Hayley Beltz, Jasmina Blecic, Emily Rauscher, Jacob L. Bean, Björn Benneke, Eliza M.-R. Kempton, Joseph Harrington, Thaddeus D. Komacek, Vivien Parmentier, S.~L. Casewell, Nicolas Iro, Luigi Mancini, Matthew C. Nixon, Michael Radica, Maria E. Steinrueck, Luis Welbanks, Natalie M. Batalha, Claudio Caceres, Ian J.~M. Crossfield, Nicolas Crouzet, Jean-Michel Désert, Karan Molaverdikhani, Nikolay K. Nikolov, Enric Palle, Benjamin v. Rackham, Everett Schlawin, David K. Sing, Kevin B. Stevenson, Xianyu Tan, Jake D. Turner, Xi Zhang
Posted Oct 1, 2025
PDF Cite DOI arXiv
Horizontal and vertical exoplanet thermal structure from a JWST spectroscopic eclipse map
First JWST thermal phase curves of temperate terrestrial exoplanets reveal no thick atmosphere around TRAPPIST-1 b and c
We report JWST/MIRI 15 μm phase curves of TRAPPIST-1 b and c, revealing thermal emission consistent with their irradiation levels, …
Michaël Gillon, Elsa Ducrot, Taylor J. Bell, Ziyu Huang, Andrew Lincowski, Xintong Lyu, Alice Maurel, Alexandre Revol, Eric Agol, Emeline Bolmont, Chuanfei Dong, Thomas J. Fauchez, Daniel D.~B. Koll, Jérémy Leconte, Victoria S. Meadows, Franck Selsis, Martin Turbet, Benjamin Charnay, Laetita Delre, Brice-Olivier Demory, Aaron Householder, Sebastian Zieba, David Berardo, Achrène Dyrek, Billy Edwards, Julien De Wit, Thomas P. Greene, Renyu Hu, Nicolas Iro, Laura Kreidberg, Pierre-Olivier Lagage, Jacob Lustig-Yaeger, Aishwarya Iyer
Posted Sep 1, 2025
Cite DOI arXiv
Limb Asymmetries on WASP-39b: A Multi-GCM Comparison of Chemistry, Clouds, and Hazes
With JWST, observing separate spectra of the morning and evening limbs of hot Jupiters has finally become a reality. The first such …
Maria E. Steinrueck, Arjun B. Savel, Duncan A. Christie, Ludmila Carone, Shang-Min Tsai, Can Akın, Thomas D. Kennedy, Sven Kiefer, David A. Lewis, Emily Rauscher, Dominic Samra, Maria Zamyatina, Kenneth Arnold, Robin Baeyens, Leonardos Gkouvelis, David Haegele, Christiane Helling, Nathan J. Mayne, Diana Powell, Michael T. Roman, Hayley Beltz, Néstor Espinoza, Kevin Heng, Nicolas Iro, Eliza M. -R. Kempton, Laura Kreidberg, James Kirk, Matthew M. Murphy, Benjamin v. Rackham, Xianyu Tan
Posted Sep 1, 2025
Cite DOI arXiv
Dark skies of the slightly eccentric WASP-18 b from its optical-to-infrared dayside emission
Context. Ultra-hot Jupiters (UHJs) are gas giant exoplanets that are strongly irradiated by their star, setting intense molecular …
A. Deline, P. E. Cubillos, L. Carone, B.-O. Demory, M. Lendl, W. Benz, A. Brandeker, M. N. Günther, A. Heitzmann, S. C. C. Barros, L. Kreidberg, G. Bruno, D. Kitzmann, A. Bonfanti, M. Farnir, C. M. Persson, S. G. Sousa, T. G. Wilson, D. Ehrenreich, V. Singh, N. Iro, Others
Posted Jul 1, 2025
PDF Cite Dataset DOI arXiv
Dark skies of the slightly eccentric WASP-18 b from its optical-to-infrared dayside emission