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The Greenland Telescope: Antenna Retrofit Status and Future Plans
Philippe Raffin, Paul T. P. Ho, Keiichi Asada +32
Since the ALMA North America Prototype Antenna was awarded to the Smithsonian Astrophysical Observatory (SAO), SAO and the Academia Sinica Institute of Astronomy & Astrophysics (AS…
Resolving the Geometry of the Innermost Relativistic Jets in Active Galactic Nuclei
Juan-Carlos Algaba, Masanori Nakamura, Keiichi Asada +1
In the current paradigm, it is believed that the compact VLBI radio core of radio-loud AGNs represents the innermost upstream regions of relativistic outflows. These regions of AGN…
Structural Transition in the NGC 6251 Jet: An Interplay with the Supermassive Black Hole and Its Host Galaxy
Chih-Yin Tseng, Keiichi Asada, Masanori Nakamura +3
The structure of the NGC 6251 jet on the milliarcsecond scale is investigated using images taken with the European VLBI Network and the Very Long Baseline Array. We detect a struct…
Resolving the rotation measure of the M87 jet on kilo-parsec scales
Juan-Carlos Algaba, Keiichi Asada, Masanori Nakamura
We investigate the distribution of Faraday rotation measure (RM) in the M87 jet at arc-second scales by using archival polarimetric VLA data at 8, 15, 22 and 43 GHz. We resolve the…