TOI-837 b is a young Saturn-sized exoplanet with a massive 70 M⊕ core
Barragán, Oscar et al. (2024)
- Published
- May 24, 2024
- Journal
- Monthly Notices of the Royal Astronomical Society · Vol. 531 · No. 4
- DOI
- 10.1093/mnras/stae1344
At a GlanceAI
TOI-837 b is a very young Saturn-sized planet whose inferred 70 Earth-mass core challenges standard planet-formation models.
SummaryAI
The study identifies TOI-837 b as a rare young, transiting Saturn-sized exoplanet and measures both its size and mass using space-based photometry and ground-based spectroscopy. Those measurements imply an unusually large core of about 70 Earth masses, making up roughly 60% of the planet’s total mass. That makes the planet an important test case for theories of how giant planets form and evolve early in their lives. The authors also highlight it as a strong target for future JWST atmospheric observations that could clarify its composition and history.
Method SnapshotAI
The authors combine transit photometry with radial-velocity spectroscopy to determine the planet’s radius, mass, and inferred internal structure.
BackgroundAI
Basic background in exoplanets, transit and radial-velocity detection, and planet formation is helpful.