51 citations · 238 across the 19 of their papers we have counts for
Showing astro-ph.HEShow all
2 papers · 1 filter
astro-ph.HE2025
A Face-on Accretion Disk Geometry Revealed by Millimeter-wave Periodicity in Sgr A
Kazuki Yanagisawa, Tomoharu Oka, Ryo Ariyama +3
We analyzed 77 epochs of Atacama Large Millimeter/submillimeter Array (ALMA) archival data to investigate flux variability in Sagittarius A (Sgr A), the supermassive black…
astro-ph.HE2020★ 28 cited
Time Variations in the Flux Density of Sgr A* at 230 GHz Detected with ALMA
Yuhei Iwata, Tomoharu Oka, Masato Tsuboi +2
A radio source at the Galactic center Sgr A* is a prime supermassive black hole candidate and therefore key to developing our understanding of them. Time variations in the 230 GHz…