L. Ravera

TL;DR: The core scientific objectives of Athena are reviewed, driving the main performance parameters of the X-IFU, namely the spectral resolution, the field of view, the effective area, the count rate capabilities, the instrumental background and the breakthrough potential.

TL;DR: The X-ray Integral Field Unit (X-IFU) on board the Advanced Telescope for High-ENergy Astrophysics (Athena) will provide spatially resolved high-resolution Xray spectroscopy from 0.2 to 12 keV, with 5 arc second pixels over a field of view of 5 arc minute equivalent diameter and a spectral resolution of 2.5 eV up to 7 keV as mentioned in this paper.

TL;DR: The X-ray Integral Field Unit (X-IFU) as mentioned in this paper is the high-resolution Xray spectrometer of the ESA Athena Xray observatory, which is based on a large format array of superconducting molybdenum-gold Transition Edge Sensors cooled at about 90 mK.

TL;DR: In this article, the authors present the X-IFU detector and readout electronics principles, some elements of the current design for the focal plane assembly and the cooling chain, as well as the current performance estimates, in terms of spectral resolution, effective area, particle background rejection and count rate capability.

TL;DR: The SAFARI instrument as discussed by the authors is a far-infrared imaging Fourier transform spectrometer for JAXA's SPICA mission, which provides sky background-limited, Nyquist-sampled spectroscopic imaging of a 2' × 2' field-of-view over 34-210 μm.