The Athena X-ray Integral Field Unit (X-IFU)

Abstract

The X-ray Integral Field Unit (X-IFU) on board the Advanced Telescope for High-ENergy Astrophysics (Athena) will provide spatially resolved high-resolution X-ray 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. In this paper, we first review the core scientific objectives of Athena, 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. We also illustrate the breakthrough potential of the X-IFU for some observatory science goals. Then we briefly describe the X-IFU design as defined at the time of the mission consolidation review concluded in May 2016, and report on its predicted performance. Finally, we discuss some options to improve the instrument performance while not increasing its complexity and resource demands (e.g. count rate capability, spectral resolution). The X-IFU will be provided by an international consortium led by France, The Netherlands and Italy, with further ESA member state contributions from Belgium, Finland, Germany, Poland, Spain, Switzerland and two international partners from the United States and Japan.

arXiv comment41 pages, 18 Figures

References in corpus (60)

• The Demography of Massive Dark Objects in Galaxy Centres
• X-ray Properties of Black-Hole Binaries
• Introducing the Illustris Project: Simulating the coevolution of dark and visible matter in the Universe
• High Redshift Galaxies in the Hubble Deep Field. Color Selection and Star Formation History to z=4
• Short-Duration Gamma-Ray Bursts
• Shocks and cold fronts in galaxy clusters
• Nucleosynthesis and Evolution of Massive Metal-Free Stars
• Powerful Outflows and Feedback from Active Galactic Nuclei
• Evidence for ultra-fast outflows in radio-quiet AGNs: I - detection and statistical incidence of Fe K-shell absorption lines
• An XMM-Newton survey of broad iron lines in Seyfert galaxies
• The Quiescent Intracluster Medium in the Core of the Perseus Cluster
• Deep Extragalactic X-ray Surveys
• Measuring Black Hole Spin using X-ray Reflection Spectroscopy
• A high velocity ionised outflow and XUV photosphere in the narrow emission line quasar PG1211+143
• Starburst-driven galactic winds: I. Energetics and intrinsic X-ray emission
• Estimation of the XUV radiation onto close planets and their evaporation
• Wind from the black-hole accretion disk driving a molecular outflow in an active galaxy
• Turbulent Heating in Galaxy Clusters Brightest in X-rays
• Localization and broadband follow-up of the gravitational-wave transient GW150914
• Dissecting X-ray-emitting Gas around the Center of our Galaxy
• Suzaku observations of 'bare' active galactic nuclei
• A rapidly spinning supermassive black hole at the centre of NGC 1365
• A unified model for the spectral variability in GRS 1915+105
• Cool Core Clusters from Cosmological Simulations
• X-Ray surface brightness and gas density fluctuations in the Coma cluster
• MHD Accretion-Disk Winds as X-ray Absorbers in AGNs
• Connecting Flares and Transient Mass Loss Events in Magnetically Active Stars
• The faint "heartbeats" of IGR J17091-3624: an exceptional black-hole candidate
• Discovery of ultra-fast outflows in a sample of Broad Line Radio Galaxies observed with Suzaku
• A Population of Intergalactic Supernovae in Galaxy Clusters
• A Deep Chandra X-ray Spectrum of the Accreting Young Star TW Hydrae
• FERO: Finding Extreme Relativistic Objects. I. Statistics of Relativistic Fe Kalpha lines in Radio-Quiet Type 1 AGN
• The Nature of the Warm/Hot Intergalactic Medium I. Numerical Methods, Convergence, and OVI Absorption
• Disk-Jet Connection in the Radio Galaxy 3C 120
• Echoes of multiple outbursts of Sagittarius A* revealed by Chandra
• Connection between the Accretion Disk and Jet in the Radio Galaxy 3C 111
• The variability of accretion onto Schwarzschild black holes from turbulent magnetized discs
• A Swift survey of accretion onto stellar-mass black holes
• Thermal SZ fluctuations in the ICM: probing turbulence and thermodynamics in Coma cluster with $Planck$
• Chemical Enrichment RGS cluster sample (CHEERS): Constraints on turbulence
• Anisotropic Metal-enriched Outflows Driven by AGN in Clusters of Galaxies
• Velocity width measurements of the coolest X-ray emitting material in the cores of clusters, groups and elliptical galaxies
• Modelling Shock Heating in Cluster Mergers: I. Moving Beyond the Spherical Accretion Model
• Weighing Galaxy Clusters with Gas. I. On the Methods of Computing Hydrostatic Mass Bias
• Metal enrichment processes
• The Accretion Disk Wind in the Black Hole GRS 1915+105
• Accretion disk dynamo as the trigger for X-ray binary state transitions
• Large-Scale Structure Formation: from the first non-linear objects to massive galaxy clusters
• Variable X-ray emission from the accretion shock in the Classical T Tauri Star V2129 Oph
• Predicting Merger-Induced Gas Motions in Lambda-CDM Galaxy Clusters
• HS 1700+6416: the first high redshift non lensed NAL-QSO showing variable high velocity outflows
• The XMM deep survey in the CDF-S. IX. An X-ray outflow in a luminous obscured quasar at z~1.6
• Probing variability patterns of the Fe K line complex in bright nearby AGNs
• Interplay between heartbeat oscillations and wind outflow in microquasar IGR J17091-3624
• A critical assessment of the metal content of the ICM
• Results from Droxo. I. The variability of fluorescent Fe 6.4 keV emission in the young star Elias 29: High-energy electrons in the star's accretion tubes?
• Stabilization of radiation pressure dominated accretion disks by viscous fluctuations
• Optimising the multiplex factor of the frequency domain multiplexed readout of the TES-based microcalorimeter imaging array for the X-IFU instrument on the Athena Xray observatory
• Effects of XUV radiation on circumbinary planets
• Microcalorimeter pulse analysis by means of principle component decomposition

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• Inferring the mass of the circumgalactic medium using X-ray resonant scattering