High-resolution transmission spectroscopy of KELT-18b Metastable helium detection at 1083 nm

arXiv:2610.17220 · astro-ph.EP · Submitted 2026-10-12 · Read on arXiv

astro-ph.EP

Submitted: 2026-10-12

Updated: 2026-10-12

Code: https://github.com/AndreaCaldiroli/ATES-Code

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Transmission spectroscopy — 1× in this paper · explained in 2 episodes

Sources

• Exoplanet Atmospheres at High Spectral Resolution

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