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astro-ph.GA2026
Short timescale variation in the submillimeter flux of Sagittarius A*
Makoto Miyoshi, Yoshiaki Kato, Yoshiharu Asaki +8
We study short-timescale 340 GHz flux-density variability of Sgr A* using ALMA Cycle 3 observations. Careful self-calibration enabled 10 s snapshot imaging with very high effective…
astro-ph.IM2026
The ngVLA Band-4 Water Vapor Radiometry Concept
Tirupati Kumara Sridharan, Robert Lehmensiek, Yoshiharu Asaki
The ngVLA has adopted a standalone system with a ~1.5 m diameter antenna and associated ambient temperature receiver and electronics at each antenna as its baseline design fo…