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Observations of 6.7 GHz Methanol Masers with EAVN I: VLBI Images of the first Epoch of Observations
Kenta Fujisawa, Koichiro Sugiyama, Kazuhito Motogi +26
Very long baseline interferometry (VLBI) monitoring of the 6.7 GHz methanol maser allows us to measure the internal proper motions of the maser spots and therefore study the gas mo…
Local Enhancement of Surface Density in the Protoplanetary Ring Surrounding HD 142527
Misato Fukagawa, Takashi Tsukagoshi, Munetake Momose +15
We report ALMA observations of dust continuum, 13CO J=3--2, and C18O J=3--2 line emission toward a gapped protoplanetary disk around HD 142527. The outer horseshoe-shaped disk show…
Extensive [CI] Mapping toward the Orion-A Molecular Cloud
Yoshito Shimajiri, Takeshi Sakai, Takashi Tsukagoshi +6
We have carried out wide-field (0.17 degree^2) and high-angular resolution (21.3 arcsec ~ 0.04 pc) observations in [CI] line toward the Orion-A giant molecular cloud with the Ataca…
High-Contrast Near-Infrared Imaging Polarimetry of the Protoplanetary Disk around RY Tau
Michihiro Takami, Jennifer L. Karr, Jun Hashimoto +50
We present near-infrared coronagraphic imaging polarimetry of RY Tau. The scattered light in the circumstellar environment was imaged at H-band at a high resolution (~0".05) for th…