Using a combination of telescopes, astronomers have characterized the closest supernova linked to a fast X-ray transient. The ...

A development of high-resolution X-ray microscope with a new type of field emission electron source is now in progress. The X-ray microscope is equipped with a lithium liquid metal electron source (Li ...

Astronomers from the University of Turku in Finland and elsewhere have performed a broadband spectral and timing study of an ...

A simple expression for the noise in the photocurrent generated by the detection of light from an ideal superluminescent source is derived using a quantum amplifier model. The excess noise factor X is ...