204 citations · 1k across the 34 of their papers we have counts for
6 papers · 1 filter
An Approach Detecting the Event Horizon of Sgr A*
Makoto Miyoshi, Seiji Kameno, Jose K. Ishituka +3
Imaging the vicinity of a black hole is one of the ultimate goals of VLBI astronomy. The closest massive black hole, Sgr A*, located at the Galactic center, is the leading candidat…
The pc-scale structure and evolution of BL Lac PKS 0003-066
S. Horiuchi, S. J. Tingay, C. J. West +11
We present the results of global VLBI observations of the BL Lac object PKS 0003-066 at 2.3 and 8.6 GHz, over a 10 year period using data from new and archived VLBA, geodetic VLBI,…
Water maser motions in W3(OH) and a determination of its distance
K. Hachisuka, A. Brunthaler, K. M. Menten +6
We report phase-referencing VLBA observations of H2O masers near the star-forming region W3(OH) to measure their parallax and absolute proper motions. The measured annual parallax…
Ten milliparsec-scale structure of the nucleus region in Centaurus A
Shinji Horiuchi, David L. Meier, Robert A. Preston +1
We present the results of a VLBI Space Observatory Programme (VSOP) observation of the subparsec structure in Centaurus A at 4.9 GHz. Owing to its proximity, our Centaurus A space-…
An Approach Detecting the Event Horizon of SgrA*
M. Miyoshi
Imaging the vicinity of black hole is one of the ultimate goals of VLBI astronomy. The closest massive black hole, SgrA*, located at Galactic center is the leading candidate for su…
Linear Polarization Observations of Water Masers in W3 IRS5
Hiroshi Imai, Shinji Horiuchi, Shuji Deguchi +1
We present a magnetic field mapping of water maser clouds in the star-forming region W3 IRS5, which has been made on the basis of the linear polarization VLBI observation. Using th…