ExoAtmospheres
IAC community database for exoplanet atmospheric observations

 

Latest exoplanet atmosphere submissions

Exoplanet Molecules Type Reference Comments
TOI-3884 b He  G-B: High resolution IR

A Headwind-like Helium Outflow from TOI-3884b

2026, Joe P. Ninan, Jessica Libby-Roberts et al.		 Asymmetric outflow morphology supports irradiation-driven mass loss
V 1298 Tau b He  G-B: High resolution IR

The GAPS Programme at TNG LXXXI. The puzzle of the HeI absorption signal in the atmosphere of V1298 Tau b with GIARPS@TNG

2026, G. Guilluy, J. Orell-Miquel et al.
WASP-94 A b CO2 H2O CO H2S Molecular ratios: C/O, etc...  JWST-NIRSpec

A New Method for Constraining 3D Exoplanet Atmospheres: Application to WASP-94A b's Panchromatic Spectrum

2026, Sagnick Mukherjee, Luis Welbanks et al.
KELT-2 A b CO2 H2O Molecular ratios: C/O, etc...  G-B: High resolution IR

Emission spectroscopy of KELT-2A b with Gemini-North/IGRINS-2: hints of a stellar C/O ratio and sub-stellar metallicity

2026, Yuya Hayashi, Stevanus K. Nugroho et al.
KELT-18 b He  G-B: High resolution IR

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

2026, M. Chella, M. Monticelli et al.
WASP-17 b CO2 H2O Eclipse mapping  JWST-NIRISS

A Spatial Map of the Atmospheric Limb of a Hot Jupiter

2026, Lili Alderson, Hannah R. Wakeford et al.
WASP-13 b Featureless spectra  G-B: High resolution IR

The GAPS programme at TNG LXXXII. The first atmospheric investigation of the gas giant WASP-13b at high resolution with GIARPS

2026, D. Sicilia, M. Basilicata et al.
51 Peg b G-B: High resolution visible

The GAPS Programme at TNG. XXIX. No detection of reflected light from 51 Peg b using optical high-resolution spectroscopy

2021, Scandariato, G., Borsa, F. et al.		 Upper limit on the albedo
WASP-76 b Mg+  HST STIS Astro-ph arXiv:2610.09128
LTT 9779 b He H2O  G-B: High resolution IR

Exploring the ultrahot Neptune LTT 9779 b with CRIRES+. Non-detection of helium transmission spectra and detection of H$_2$O on the dayside

2026, S. Liu, F. Yan et al.
LTT 9779 b Featureless spectra Cloudy  JWST-NIRSpec

Cool, Cloudy Nights on an Ultrahot Neptune: A Panchromatic NIRISS/NIRSpec Transmission Spectrum of LTT 9779 b

2026, Sarah Stamer, Diana Dragomir et al.
LHS 3844 b JWST-MIRI

Improved Constraints on the Surface of LHS 3844 b from its Mid-Infrared Spectrum

2026, Kimberly Paragas, Heather A. Knutson et al.		 emission spectrum resembles a blackbody shortward of 10 μm
TOI-125 c Featureless spectra  JWST-NIRSpec

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

2026, Yiwei Chai, Néstor Espinoza et al.
TOI-125 b Featureless spectra  JWST-NIRSpec

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

2026, Yiwei Chai, Néstor Espinoza et al.
TOI-2431 b HST WFC3

The First Hubble Detection of a Secondary Eclipse from a Rocky Exoplanet: the 5.4-hour planet TOI-2431 b

2026, Sebastian Zieba, Billy Edwards et al.
GJ 357 b JWST-MIRI

Hot Rocks Survey VI: An anomalously hot dayside for the rocky planet GJ 357 b

2026, Merlin Zgraggen, Brice-Olivier Demory et al.		 Measurements not explained by current models
eps Ind A b NH3 CH4 CO2  JWST-MIRI

Molecular mapping of an exoplanet with JWST: NH3 detection in the temperate super-Jupiter Epsilon Indi Ab

2026, R. Kravtchenko, O. Berné et al.
WASP-94 A b He  JWST-NIRISS

Cloudy mornings and clear evenings on a gas giant exoplanet

2025, Sagnick Mukherjee, David K. Sing et al.		 Helium detection from one single point
NGTS-10 Ab Cloudy Atmospheric dynamics  JWST-NIRSpec

Inhomogeneous Cloud Coverage and Altitude-Dependent Heat Transport on the Hot-Jupiter NGTS-10 Ab from its Optical-to-Infrared Phase Curve

2026, Louis-Philippe Coulombe, Vivien Parmentier et al.
WASP-52 b H2O CO2  JWST-NIRSpec

JWST MEP - A World Under Spotty Starlight: Detection of CO2 and H2O in the Hot Saturn WASP-52b with JWST NIRSpec G395H

2026, JWST GO 3969 Team, Yanbo Pan et al.