Vertical structure of an exoplanet's atmospheric jet stream
Fuente:
arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| author | Seidel, Julia V. Prinoth, Bibiana Pino, Lorenzo Santos, Leonardo A. dos Chakraborty, Hritam Parmentier, Vivien Sedaghati, Elyar Wardenier, Joost P. Jentink, Casper Farret Osorio, Maria Rosa Zapatero Allart, Romain Ehrenreich, David Lendl, Monika Roccetti, Giulia Damasceno, Yuri Bourrier, Vincent Lillo-Box, Jorge Hoeijmakers, H. Jens Pallé, Enric Santos, Nuno Mascareño, Alejandro Suárez Sousa, Sergio G. Tabernero, Hugo M. Pepe, Francesco A. |
| author_facet | Seidel, Julia V. Prinoth, Bibiana Pino, Lorenzo Santos, Leonardo A. dos Chakraborty, Hritam Parmentier, Vivien Sedaghati, Elyar Wardenier, Joost P. Jentink, Casper Farret Osorio, Maria Rosa Zapatero Allart, Romain Ehrenreich, David Lendl, Monika Roccetti, Giulia Damasceno, Yuri Bourrier, Vincent Lillo-Box, Jorge Hoeijmakers, H. Jens Pallé, Enric Santos, Nuno Mascareño, Alejandro Suárez Sousa, Sergio G. Tabernero, Hugo M. Pepe, Francesco A. |
| contents | Ultra-hot Jupiters, an extreme class of planets not found in our solar system, provide a unique window into atmospheric processes. The extreme temperature contrasts between their day- and night-sides pose a fundamental climate puzzle: how is energy distributed? To address this, we must observe the 3D structure of these atmospheres, particularly their vertical circulation patterns, which can serve as a testbed for advanced Global Circulation Models (GCM) [e.g. 1]. Here, we show a dramatic shift in atmospheric circulation in an ultra-hot Jupiter: a unilateral flow from the hot star-facing side to the cooler space-facing side of the planet sits below an equatorial super-rotational jet stream. By resolving the vertical structure of atmospheric dynamics, we move beyond integrated global snapshots of the atmosphere, enabling more accurate identification of flow patterns and allowing for a more nuanced comparison to models. Global circulation models based on first principles struggle to replicate the observed circulation pattern [3], underscoring a critical gap between theoretical understanding of atmospheric flows and observational evidence. This work serves as a testbed to develop more comprehensive models applicable beyond our Solar System as we prepare for the next generation of giant telescopes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_12261 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Vertical structure of an exoplanet's atmospheric jet stream Seidel, Julia V. Prinoth, Bibiana Pino, Lorenzo Santos, Leonardo A. dos Chakraborty, Hritam Parmentier, Vivien Sedaghati, Elyar Wardenier, Joost P. Jentink, Casper Farret Osorio, Maria Rosa Zapatero Allart, Romain Ehrenreich, David Lendl, Monika Roccetti, Giulia Damasceno, Yuri Bourrier, Vincent Lillo-Box, Jorge Hoeijmakers, H. Jens Pallé, Enric Santos, Nuno Mascareño, Alejandro Suárez Sousa, Sergio G. Tabernero, Hugo M. Pepe, Francesco A. Earth and Planetary Astrophysics Ultra-hot Jupiters, an extreme class of planets not found in our solar system, provide a unique window into atmospheric processes. The extreme temperature contrasts between their day- and night-sides pose a fundamental climate puzzle: how is energy distributed? To address this, we must observe the 3D structure of these atmospheres, particularly their vertical circulation patterns, which can serve as a testbed for advanced Global Circulation Models (GCM) [e.g. 1]. Here, we show a dramatic shift in atmospheric circulation in an ultra-hot Jupiter: a unilateral flow from the hot star-facing side to the cooler space-facing side of the planet sits below an equatorial super-rotational jet stream. By resolving the vertical structure of atmospheric dynamics, we move beyond integrated global snapshots of the atmosphere, enabling more accurate identification of flow patterns and allowing for a more nuanced comparison to models. Global circulation models based on first principles struggle to replicate the observed circulation pattern [3], underscoring a critical gap between theoretical understanding of atmospheric flows and observational evidence. This work serves as a testbed to develop more comprehensive models applicable beyond our Solar System as we prepare for the next generation of giant telescopes. |
| title | Vertical structure of an exoplanet's atmospheric jet stream |
| topic | Earth and Planetary Astrophysics |
| url | https://arxiv.org/abs/2502.12261 |