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astro-ph.EP2026
Exploring the ultrahot Neptune LTT 9779 b with CRIRES+. Non-detection of helium transmission spectra and detection of HO on the dayside
S. Liu, F. Yan, L. Nortmann +15
Ultrahot Neptunes reside in the most extreme irradiation regime of the hot Neptune desert and remain challenging targets for atmospheric characterization because of their low plane…
astro-ph.EP2026
Detection of CO, HO, and OH in WASP-18b with JWST/NIRISS using Direct-Extracted Spectra and Cross-Correlation
Qinglin Ouyang, Fei Yan, Shuo Liu +7
The James Webb Space Telescope (JWST) has revolutionized the characterization of exoplanetary atmospheres, offering unprecedented sensitivity to probe their chemical and physical p…