JWST NIRSpec G395H Transmission Spectra of Two Similar Sub-Neptunes in the TOI-125 System

arXiv:2609.35607 · astro-ph.EP · Submitted 2026-09-28 · Read on arXiv

astro-ph.EP

Submitted: 2026-09-28

Updated: 2026-09-28

Terminology

• Metallicity — 16× in this paper · explained in 3 episodes
• Trace — 13× in this paper · explained in 2 episodes
• Aperture — 8× in this paper · explained in 1 episode
• Transmission spectroscopy — 4× in this paper · explained in 2 episodes
• Calibration — 3× in this paper · explained in 7 episodes
• James Webb Space Telescope — 3× in this paper
• Degeneracy — 2× in this paper · explained in 3 episodes
• Hubble Space Telescope — 2× in this paper
• Robustness — 2× in this paper · explained in 5 episodes
• Abundance — 1× in this paper · explained in 1 episode
• Adam — 1× in this paper · explained in 2 episodes

Sources

• JWST Reveals CH$_4$, CO$_2$, and H$_2$O in a Metal-rich Miscible Atmosphere on a Two-Earth-Radius Exoplanet
• Highlights from Exoplanet Observations by the James Webb Space Telescope
• WINERED Detects a Strong Atmospheric Outflow on the Sub-Neptune GJ 3090b

Related papers

• PDS 70 c and SR 12 c: Observational Constraints on Giant-Planet and Satellite Formation
• Two-stage disruption of resonant chains
• Detectability of resolved hydrogen lines from the accretion shock at gas giants and their CPDs
• Binary-lens Microlensing Degeneracy: Impact on Planetary Sensitivity and Mass-ratio Function
• Atmospheric escape fractionates secondary but not primary atmospheres
• The Occurrence Rate of Nearby Planetary Companions to Hot Jupiters