69 citations · 204 across the 9 of their papers we have counts for
20 papers
Analytic expressions for geometric cross-sections of fractal dust aggregates
Ryo Tazaki
In protoplanetary discs and planetary atmospheres, dust grains coagulate to form fractal dust aggregates. The geometric cross-section of these aggregates is a crucial parameter cha…
Scattering polarization of 3-m water-ice feature by large icy grains
Ryo Tazaki, Koji Murakawa, Takayuki Muto +2
Water ice has a strong spectral feature at a wavelength of approximately m, which plays a vital role in our understanding of the icy universe. In this study, we investigate th…
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…
SCExAO/CHARIS High-Contrast Imaging of Spirals and Darkening Features in the HD 34700 A Protoplanetary Disk
Taichi Uyama, Thayne Currie, Valentin Christiaens +27
We present Subaru/SCExAO+CHARIS broadband (-band) integral field spectroscopy of HD 34700 A. CHARIS data recover HD 34700 A's disk ring and confirm multiple spirals discovered…
Distortion of Magnetic Fields in BHR 71
Ryo Kandori, Motohide Tamura, Masao Saito +9
The magnetic field structure of a star-forming Bok globule BHR 71 was determined based on near-infrared polarimetric observations of background stars. The magnetic field in BHR 71…
Dust Destruction by Charging: A Possible Origin of Grey Extinction Curves of Active Galactic Nuclei
Ryo Tazaki, Kohei Ichikawa, Mitsuru Kokubo
Observed extinction curves of active galactic nuclei (AGNs) are significantly different from those observed in the Milky Way. The observations require preferential removal of small…