Evidence for Multiple Orbiting Hotspots in the 340 GHz Variability of Sgr A*

Kazuki Yanagisawa, Tomoharu Oka, Tatsuya Kotani +3

We analyzed 11 epochs of archival Atacama Large Millimeter/submillimeter Array (ALMA) data to investigate flux density variability of Sgr A* at 340 GHz. In one epoch, the light cur…