Simulating X-ray observations of galaxy clusters with the X-ray Integral Field Unit onboard the Athena mission

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Details zur Publikation

Autorinnen und Autoren: Cucchetti E, Pointecouteau E, Peille P, Clerc N, Rasia E, Biffi V, Borgani S, Dolag K, Wilms J, Pajot F, Barret D
Jahr der Veröffentlichung: 2018
Band: 10699
ISSN: 0277-786X


Abstract

The X-ray Integral Field Unit (X-IFU) is the cryogenic imaging spectrometer onboard the ESA L2 mission Athena. With its array of almost 3840 superconducting Transition Edge Sensors micro-calorimeters, the X-IFU will provide spatially resolved (5" over the field of view) high-resolution spectroscopy (2.5 eV FWHM up to 7 keV) in the 0.2-12 keV energy band. These transformational capabilities will allow the X-IFU to probe the Hot and Energetic Universe, and notably measure the physical properties of large-scale structures with unprecedented accuracy. Starting from numerically-simulated massive (1014 Mo) galaxy clusters at different steps of their evolution, we investigate the capabilities of the X-IFU in recovering chemical abundances, redshift and gas temperature spatial distributions across time, making use of full field-of-view End-To-End simulations of X-IFU observations. This work serve as feasibility study for the Chemical Enrichment of the Universe science objective. We show that using 100 ks observations, the X-IFU will provide an unprecedented spatially-accurate knowledge of the physics of the ICM (abundances, temperature, bulk-motion). We also demonstrate that challenges related to the data analysis of extended sources with very high-resolution spectrometers (e.g. binning, line of sight mixing, particle background) need to be thoroughly addressed to maximise the science of the instrument.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Wilms, Jörn Prof. Dr.
Professur für Astronomie und Astrophysik


Einrichtungen weiterer Autorinnen und Autoren

National Centre for Space Studies / Centre national d'études spatiales (CNES)
National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF)
Universitäts-Sternwarte München
University of Toulouse


Zitierweisen

APA:
Cucchetti, E., Pointecouteau, E., Peille, P., Clerc, N., Rasia, E., Biffi, V.,... Barret, D. (2018). Simulating X-ray observations of galaxy clusters with the X-ray Integral Field Unit onboard the Athena mission.

MLA:
Cucchetti, Edoardo, et al. "Simulating X-ray observations of galaxy clusters with the X-ray Integral Field Unit onboard the Athena mission." 2018.

BibTeX: 

Zuletzt aktualisiert 2019-09-05 um 18:08