69 citations · 218 across the 9 of their papers we have counts for
9 papers
A Hydrochemical Hybrid Code for Astrophysical Problems. I. Code Verification and Benchmarks for Photon-Dominated Region (PDR)
Kazutaka Motoyama, Oscar Morata, Hsien Shang +2
A two dimensional hydrochemical hybrid code, KM2, is constructed to deal with astrophysical problems that would require coupled hydrodynamical and chemical evolution. The code assu…
Effects of Magnetic Field and FUV Radiation on the Structures of Bright-rimmed Clouds
Kazutaka Motoyama, Tomofumi Umemoto, Hsien Shang +1
The bright-rimmed cloud SFO 22 was observed with the 45 m telescope of Nobeyama Radio Observatory in the ^{12}CO (J = 1-0), ^{13}CO (J = 1-0), and C^{18}O (J = 1-0) lines, where we…
Effects of H2 coating of grains on depletion of molecular species
Oscar Morata, Tatsuhiko I. Hasegawa
Physical conditions in dense and cold regions of interstellar clouds favour the formation of ice mantles on the surfaces of interstellar grains. It is predicted that most of the ga…
The reflection-symmetric wiggle of the young protostellar jet HH 211
Chin-Fei Lee, Tatsuhiko I. Hasegawa, Naomi Hirano +4
HH 211 is a highly collimated jet originating from a nearby young Class 0 protostar. Here is a follow-up study of the jet with our previous observations at unprecedented resolution…
An evolved disk surrounding the massive main sequence star MWC 297?
P. Manoj, Paul T. P. Ho, Nagayoshi Ohashi +5
We present the results of the interferometric observations of the circumstellar disk surrounding MWC 297 in the continuum at 230 GHz (1.3 mm) and in the (J=2-1) rotational transiti…
Submillimeter Array Observation of the Proto-Planetary Nebula CRL 618 in the CO J=6-5 Line
Jun-ichi Nakashima, David Fong, Tatsuhiko Hasegawa +6
We report on the results of a Submillimeter Array interferometric observation of the proto-planetary nebula CRL 618 in the 12CO J=6-5 line. With the new capability of SMA enabling…