Simultaneous X-Ray and Infrared Observations of Sagittarius A*'s Variability
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Emission from Saggitarius A* is highly variable at both X-ray and infrared (IR) wavelengths. Observations over the last ~20 yr have revealed X-ray flares that rise above a quiescent thermal background about once per day, while faint X-ray flares from Sgr A* ar... ...
