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| Paper: |
A Study of Atmospheric Mass Loss for the Hot-Jupiter Kepler-423 b and the Super-Earth TOI-733 b |
| Monograph: |
11, HWO25 Proceedings Part II: Mission Framework, Technology, and Broader Contributions |
| Page: |
143 |
| Authors: |
Andre O. Kovacs and Adriana Valio |
| DOI: |
10.26624/NIKB8531 |
| Abstract: |
The study of atmospheric mass loss is essential for understanding the diversity of exoplanets and their habitability, yet the exact details under which this process occurs remain incompletely understood. Many different mechanisms are believed to influence the erosion of exoplanetary atmospheres, shaping the evolution of such worlds, including stellar irradiation, stellar winds, and planetary magnetic fields.
In this work, we focus on Kepler-423 and TOI-733, representing two systems containing solar-type host stars. We estimate the total atmospheric escape induced by photoevaporation and stellar wind, after planet formation, of their exoplanets Kepler-423 b and TOI-733 b. Specifically, based on an empirical model of XUV emissions and wind from the Sun, we employ models of atmospheric loss due to photoevaporation and stellar wind. For the hot Jupiter Kepler-423 b, in particular, we estimate a combined atmospheric mass loss of the order of 3.6–12.9% of the initial planet mass, from the effects of photoevaporation and the stellar wind. Interestingly, we estimate lower levels of combined atmospheric mass loss, approximately 1.2–4.8%, for the hot super-Earth TOI-733 b. |
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