In the last three decades, knowledge of planetary systems other than our own has increased
rapidly with the discovery of over 5,000 exoplanets (Christiansen 2022). These worlds vary …

We investigate a new class of habitable planets composed of water-rich interiors with
massive oceans underlying H 2-rich atmospheres, referred to here as Hycean worlds. With …

Observations of exoplanet atmospheres have shown that aerosols, like in the solar system,
are common across a variety of temperatures and planet types. The formation and …

The JWST has ushered in a new era in atmospheric characterisations of temperate low-
mass exoplanets with recent detections of carbon-bearing molecules in the candidate …

A planetary atmosphere is the outer gas layer of a planet. Besides its scientific significance
among the first and most accessible planetary layers observed from space, it is closely …

The upcoming deployment of the James Webb Space Telescope will dramatically advance
our ability to characterize exoplanet atmospheres, both in terms of precision and sensitivity …

Abstract Sub-Neptunes (R p∼ 1.25–4 R Earth) remain the most commonly detected
exoplanets to date. However, it remains difficult for observations to tell whether these …

Photochemical hazes have been suggested as candidate for the high-altitude aerosols
observed in the transmission spectra of many hot Jupiters. We present 3D simulations of the …

Photochemical hazes are important opacity sources in temperate exoplanet atmospheres,
hindering current observations from characterizing exoplanet atmospheric compositions …

We report new optical constants (refractive index, n, and extinction coefficient, k) for
exoplanet haze analogs from 0.3 to 30 µm. The samples were produced in a simulated N 2 …