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Three worlds in one: Venus as a natural laboratory for the effect of rotation period on atmospheric circulation

Because of its rotation period of 243 days, Venus is considered a slowly rotating planet. However, its persistent superrotating atmospheric jets, which increase in speed from …

maureen-cohen

Planetary waves drive horizontal variations in trace species in the Venus deep atmosphere

The deep atmosphere of Venus remains mysterious because of the planet’s high, optically thick cloud decks. While phenomena such as the observed decadal fluctuations in sulfur …

maureen-cohen

Haze optical depth in exoplanet atmospheres varies with rotation rate: Implications for observations

Transmission spectroscopy supports the presence of uncharacterized, light-scattering and -absorbing hazes in the atmospheres of many exoplanets. The complexity of factors …

maureen-cohen

Stratospheric dayside-to-nightside circulation drives the 3D ozone distribution on synchronously rotating rocky exoplanets

Determining the habitability and interpreting future atmospheric observations of exoplanets requires understanding the atmospheric dynamics and chemistry from a 3D perspective. …

marrick-braam

Traveling planetary-scale waves cause cloud variability on tidally locked aquaplanets

Cloud cover at the planetary limb of water-rich Earth-like planets is likely to weaken chemical signatures in transmission spectra, impeding attempts to characterize these …

maureen-cohen

Longitudinally asymmetric stratospheric oscillation on a tidally locked exoplanet

Using a three-dimensional general circulation model, we show that the atmospheric dynamics on a tidally locked Earth-like exoplanet, simulated with the planetary and orbital …

maureen-cohen

A diffusion-based method for removing background stars from astronomical images

Image processing techniques for background star removal from astronomical images have important applications such as streak detection and star/galaxy differentiation in galaxy …

maureen-cohen