A Revised Density Estimate for the Largest Known Exoplanet, HAT-P-67 b

Low-density ( ρ _p  < 0.1 g cm ^−3 ) hot Saturns are expected to quickly (<100 Myr) lose their atmospheres owing to stellar irradiation, explaining their rarity. HAT-P-67 b seems to be an exception, with ρ _p  < 0.09 g cm ^−3 and maintaining its atmosphere to well after 1 Gyr. We present a...

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Bibliographic Details
Published in:The Astronomical Journal
Main Authors: Gavin Wang, William O. Balmer, Laurent Pueyo, Daniel Thorngren, Stephen P. Schmidt, Le-Chris Wang, Kevin C. Schlaufman, Guðmundur Stefánsson, Zafar Rustamkulov, David K. Sing
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Subjects:
Exoplanet astronomy
Exoplanet tides
Exoplanets
Extrasolar gaseous giant planets
Radial velocity
Stellar activity
Online Access:https://doi.org/10.3847/1538-3881/adcec9

Internet

https://doi.org/10.3847/1538-3881/adcec9

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