By Javier A. García

Accreting black holes and neutron stars share many similarities when observed

By Anna Juráňová

X-ray spectra of many variable active galactic nuclei (AGNs) show absorption features

By Fabio Gastaldello

The instrumental background has always played an important role in X-ray missions

By Hiroki Akamatsu

We are developing the Frequency Domain Multiplexing (FDM) read-out of Transition-Edge Sensors