98 citations · 226 across the 7 of their papers we have counts for
7 papers
Revisiting Jovian-Resonance Induced Chondrule Formation
M. Nagasawa, K. K. Tanaka, H. Tanaka +3
It is proposed that planetesimals perturbed by Jovian mean-motion resonances are the source of shock waves that form chondrules. It is considered that this shock-induced chondrule…
Sublimation Temperature of Circumstellar Dust Particles and Its Importance for Dust Ring Formation
Hiroshi Kobayashi, Hiroshi Kimura, Sei-ichiro Watanabe +2
Dust particles in orbit around a star drift toward the central star by the Poynting-Robertson effect and pile up by sublimation. We analytically derive the pile-up magnitude, adopt…
Low-Temperature Crystallization of Amorphous Silicate in Astrophysical Environments
Kyoko. K. Tanaka, Tetsuo Yamamoto, Hiroshi Kimura
We construct a theoretical model for low-temperature crystallization of amorphous silicate grains induced by exothermic chemical reactions. As a first step, the model is applied to…
Near Infrared Polarization Images of the Orion Nebula
M. Tamura, R. Kandori, N. Kusakabe +11
Wide-field (~8' x 8') and deep near-infrared (JHKs bands) polarization images of the Orion nebulae (IRNe) around young stellar objects (YSOs), both massive and low-mass. We found t…
First Two-Micron Imaging Polarimetry of Beta Pictoris
Motohide Tamura, Misato Fukagawa, Hiroshi Kimura +3
High-resolution K band imaging polarimetry of the beta Pic dust disk has been conducted with adaptive optics and a coronagraph using the Subaru 8.2-m telescope. Polarization of ~10…
Near-Infrared Photometric Monitoring of a Pre-Main-Sequence Object KH 15D
Nobuhiko Kusakabe, Motohide Tamura, Yasushi Nakajima +12
An extensive photometric monitoring of KH 15D, an enigmatic variable in the young star cluster NGC 2264, has been conducted. Simultaneous and accurate near-infrared (JHKs-bands) ph…