Investigating potential causes for high inferred intrinsic temperatures of warm transiting Neptune and Sub-Neptune planets

arXiv:2609.32044 · astro-ph.EP · Submitted 2026-09-25 · Read on arXiv

astro-ph.EP

Submitted: 2026-09-25

Updated: 2026-09-25

Terminology

• Metallicity — 28× in this paper · explained in 3 episodes
• Core — 25× in this paper · explained in 2 episodes
• Abundance — 13× in this paper · explained in 1 episode
• Adam — 2× in this paper · explained in 2 episodes
• Alignment — 1× in this paper · explained in 1 episode
• Benchmark — 1× in this paper · explained in 2 episodes
• Fine-Tuning — 1× in this paper · explained in 5 episodes
• Transmission spectroscopy — 1× in this paper · explained in 2 episodes

Sources

• Stellar Flares Rather than High T int As Possible Cause for the Missing Methane in Young Exoplanets: The Case Study of V1298 Tau,b
• Sulfur Dioxide and Other Molecular Species in the Atmosphere of the Sub-Neptune GJ 3470 b
• Photochemical CS 2 Gas Detected on a 20-Myr-old Exoplanet
• Monitoring the young planet host V1298 Tau with SPIRou: planetary system and evolving large-scale magnetic field
• Unusually Hot Interiors Could Reconcile the Missing Methane Problem for Warm-to-Hot Exoplanets with Hydrogen Atmospheres

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