A phenomenological model for the intracluster medium that matches X-ray and Sunyaev-Zel'dovich observations

DOI: 
10.1093/mnras/stt2196
Publication date: 
01/02/2014
Main author: 
Zandanel F.
IAA authors: 
Zandanel F.;Prada F.
Authors: 
Zandanel F., Pfrommer C., Prada F.
Journal: 
Monthly Notices of the Royal Astronomical Society
Publication type: 
Article
Volume: 
438
Pages: 
116-123
Number: 
stt2196
Abstract: 
Cosmological hydrodynamical simulations of galaxy clusters are still challenged to produce a model for the intracluster medium that matches all aspects of current X-ray and Sunyaev-Zel'dovich observations. To facilitate such comparisons with future simulations and to enable realistic cluster population studies for modelling e.g. non-thermal emission processes, we construct a phenomenological model for the intracluster medium that is based on a representative sample of observed X-ray clusters. We create a mock galaxy cluster catalogue based on the large collisionless N-body simulation MultiDark, by assigning our gas density model to each dark matter cluster halo. Our clusters are classified as cool core and non-cool core according to a dynamical disturbance parameter. We demonstrate that our gas model matches the various observed Sunyaev-Zel'dovich and X-ray scaling relations as well as the X-ray luminosity function, thus enabling to build a reliable mock catalogue for present surveys and forecasts for future experiments. In a companion paper, we apply our catalogues to calculate non-thermal radio and gamma-ray emission of galaxy clusters. We make our cosmologically complete multifrequency mock catalogues for the (non-)thermal cluster emission at different redshifts publicly and freely available online through the MultiDark data base. © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.
Database: 
WOK
SCOPUS
ADS
URL: 
https://ui.adsabs.harvard.edu/#abs/2014MNRAS.438..116Z/abstract
ADS Bibcode: 
2014MNRAS.438..116Z
Keywords: 
Catalogues; Galaxies: clusters: intracluster medium; X-rays: galaxies: clusters