Transition Edge Sensors (TESs) are amongst the most sensitive cryogenic detectors and
can be easily optimized for the detection of massive particles or photons ranging from X-rays …

Large X-ray observatories such as Chandra and XMM-Newton have been delivering
scientific breakthroughs in research fields as diverse as our Solar System, the astrophysics …

Context. Extragalactic fast X-ray transients (FXTs) are short flashes of X-ray photons of
unknown origin that last a few minutes to hours. Aims. We extend the previous search for …

The Line Emission Mapper (LEM) is an x-ray probe mission concept that is designed to
provide unprecedented insight into the physics of galaxy formation, including stellar and …

Context. Detections of the X-ray spectra of active galactic nuclei (AGNs) typically reveal a
noticeable excess of soft X-rays beyond the extrapolation of the power-law trend observed …

Mrk 1239 is a highly polarized NLS1 in the optical band, whose 0.3–3 keV spectrum has
remained remarkably consistent over more than two decades of observation. Previous …

Single-photon detectors based on the superconducting transition-edge sensor are used in a
number of visible to near-infrared applications, particularly for photon-number-resolving …

Context. The magneto-thermal instability (MTI) is one of many possible drivers of stratified
turbulence in the intracluster medium (ICM) outskirts of galaxy clusters, where the …

Athena (advanced telescope for high-energy astrophysics) is an ESA large-class mission, at
present under a re-definition “design-to-cost” phase, planned for a prospective launch at L1 …

Context. Inferring spectral parameters from X-ray data is one of the cornerstones of high-
energy astrophysics, and is achieved using software stacks that have been developed over …