Sgr A*, at the heart of the Milky Way and clocking in at 4.3 million solar masses, is the closest supermassive black hole we have access to. It's also on the quiescent end of the activity scale, which ...
Sagittarius A* is the supermassive black hole at the center of the Milky Way. As supermassive black holes go, it is fairly ...
This work reports the design of an efficient multiband UC system based on Ln3+/Yb3+-doped core-shell upconversion ...
The UVM- 1 operates from the deep ultraviolet to the near infrared, has excellent research capabilities and offers quick and reliable operation. The UVM-1 is especially suited for the UV-visible-NIR ...