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Haze Formation on Triton
Kazumasa Ohno, Xi Zhang, Ryo Tazaki +1
The largest moon of Neptune, Triton, possess a cold and hazy atmosphere. Since the discovery of near-surface haze layer during the Voyager fly in 1989, the haze formation mechanism…
Constraining the Bulk Composition of Disintegrating Exoplanets Using Combined Transmission Spectra from JWST and SPICA
Ayaka Okuya, Satoshi Okuzumi, Kazumasa Ohno +1
Disintegrating planets are ultra-short-period exoplanets that appear to have a comet-like dust tail. They are commonly interpreted as low-mass planets whose solid surface is evapor…
Thermal inertias of pebble-pile comet 67P/Churyumov-Gerasimenko
Sota Arakawa, Kazumasa Ohno
The Rosetta mission to comet 67P/Churyumov-Gerasimenko has provided new data to better understand what comets are made of. The weak tensile strength of the cometary surface materia…
Super-Rayleigh Slopes in Transmission Spectra of Exoplanets Generated by Photochemical Haze
Kazumasa Ohno, Yui Kawashima
Spectral slopes in optical transmission spectra of exoplanetary atmospheres encapsulate information on the properties of exotic clouds. The slope is usually attributed to the Rayle…