18 citations · 32 across the 5 of their papers we have counts for
5 papers
A Hycean Interpretation of K2-18b Supported by Photochemical Atmospheric Compositional
Takuya Fujisawa, Masashi Shimada, Tatsuya Yoshida +1
The nature of the sub-Neptune K2-18b is debated between Hycean and mini-Neptune interpretations. We test whether self-consistent Hycean atmospheres are compatible with current JWST…
Water-Cooled (sub)-Neptunes Get Better Gas Mileage
Tatsuya Yoshida, Eric Gaidos
The demographics of sub-Jovian planets around low-mass stars is dominated by populations of ``sub-Neptunes" and ``super-Earths", distinguished by the presence or absence of envelop…
Suppression of hydrodynamic escape of an H2-rich early Earth atmosphere by radiative cooling of carbon oxides
Tatsuya Yoshida, Naoki Terada, Kiyoshi Kuramoto
Radiative cooling by molecules is a crucial process for hydrodynamic escape, as it can efficiently remove the thermal energy driving the outflow, acquired through X-ray and extreme…
Self-Shielding Enhanced Organics Synthesis in an Early Reduced Earth's Atmosphere
Tatsuya Yoshida, Shungo Koyama, Yuki Nakamura +2
Earth is expected to have acquired a reduced proto-atmosphere enriched in H2 and CH4 through the accretion of building blocks that contain metallic Fe and/or the gravitational trap…
Numerical performance of correlated-k distribution method in atmospheric escape simulation
Yuichi Ito, Tatsuya Yoshida, Akifumi Nakayama
Atmospheric escape is crucial to understand the evolution of planets in and out of the Solar system and to interpret atmospheric observations. While hydrodynamic escape simulations…