ArXiv TLDR

Ravit Helled

4 papers · Latest:

Exoplanets & Planetary Science

Can radio occultations constrain Uranus or Neptune's internal rotation periods?

Radio occultations alone cannot precisely constrain Uranus or Neptune's interior rotation periods due to the strong influence of atmospheric winds on planetary shape.

2604.19863
Exoplanets & Planetary Science

Active moons in our Solar System and beyond -- Io, Europa, Enceladus, Triton, and exomoons

This review explores active moons like Io, Europa, Enceladus, and Triton, focusing on their plumes and potential for detecting biosignatures.

2604.12104
Exoplanets & Planetary Science

Origin and characterization of super-Earths and sub-Neptunes

This paper reviews progress (2014-2025) in detecting, characterizing, and theoretically interpreting super-Earths and sub-Neptunes.

2604.11779
Exoplanets & Planetary Science

GEMS JWST: HATS-75 b -- A giant planet with a sub-solar metallicity atmosphere orbiting an M-dwarf

JWST observations of giant exoplanet HATS-75 b reveal a sub-solar metallicity atmosphere, emphasizing the need to account for stellar contamination.

2604.07268

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