An improved deprojection and PSF-deconvolution technique for galaxy-cluster X-ray surface-brightness profiles

Abstract

We have developed a regularisation procedure for the direct deprojection and PSF-deconvolution of X-ray surface brightness profiles of clusters of galaxies. This procedure allows us to obtain accurate density profiles in a straightforward manner from X-ray observations (in particular data from XMM-Newton, where the PSF correction is important), while retaining information about substructure in the gas distribution, in contrast to analytic modelling of the profiles. In addition to describing our procedure, we present here a detailed investigation of the accuracy of the method and its error calculations over a wide range of input profile characteristics and data quality using Monte Carlo simulations. We also make comparisons with gas density profiles obtained from Chandra observations, where the PSF correction is small, and with profiles obtained using analytic modelling, which demonstrate that our procedure is a useful improvement over standard techniques. This type of method will be especially valuable in the ongoing analysis of unbiased and complete samples of X-ray clusters, both local and distant, helping to improve the quality of their results.

16 pages, 15 figures. Accepted for publication in A&A

References in corpus (16)

• Chandra sample of nearby relaxed galaxy clusters: mass, gas fraction, and mass-temperature relation
• Tracing cosmic evolution with clusters of galaxies
• The Imprint of Galaxy Formation on X-ray Clusters
• An investigation of cooling flows and general cluster properties from an X-ray image deprojection analysis of 207 clusters of galaxies
• The structural and scaling properties of nearby galaxy clusters - II. The M-T relation
• A High Resolution Study of the Hydra A Cluster with Chandra: Comparison of the Core Mass Distribution with Theoretical Predictions and Evidence for Feedback in the Cooling Flow
• The Birmingham-CfA cluster scaling project - III: entropy and similarity in galaxy systems
• The Efficiency of Globular Cluster Formation
• The structural and scaling properties of nearby galaxy clusters: I - The universal mass profile
• The mass profile of A1413 observed with XMM-Newton: implications for the M-T relation
• Cosmological simulations of the intracluster medium
• Structure and scaling of the entropy in nearby galaxy clusters
• XMM-Newton observations of three poor clusters: Similarity in dark matter and entropy profiles down to low mass
• XMM-Newton observation of the relaxed cluster A478: gas and dark matter distribution from 0.01 R_200 to 0.5 R_200
• Chandra observations of the galaxy cluster A478: the interaction of hot gas and radio plasma in the core, and an improved determination of the Compton y-parameter
• The temperature and distribution of gas in CL 0016+16 measured with XMM-Newton

Cited by in corpus (47)

• The universal galaxy cluster pressure profile from a representative sample of nearby systems (REXCESS) and the Y_SZ-M_500 relation
• Galaxy cluster X-ray luminosity scaling relations from a representative local sample (REXCESS)
• Gas entropy in a representative sample of nearby X-ray galaxy clusters (REXCESS): relationship to gas mass fraction
• The Representative XMM-Newton Cluster Structure Survey (REXCESS) of an X-ray Luminosity Selected Galaxy Cluster Sample
• Calibration of the galaxy cluster M_500-Y_X relation with XMM-Newton
• Universal thermodynamic properties of the intracluster medium over two decades in radius in the X-COP sample
• Galaxy-cluster gas-density distributions of the Representative XMM-Newton Cluster Structure Survey (REXCESS)
• Mass profiles of Galaxy Clusters from X-ray analysis
• CLASH-X: A Comparison of Lensing and X-ray Techniques for Measuring the Mass Profiles of Galaxy Clusters
• High angular resolution Sunyaev-Zel'dovich observations of MACS J1423.8+2404 with NIKA: Multiwavelength analysis
• Planck Early Results XXVI: Detection with Planck and confirmation by XMM-Newton of PLCK G266.6-27.3, an exceptionally X-ray luminous and massive galaxy cluster at z~1
• The XMM Cluster Outskirts Project (X-COP): Thermodynamic properties of the Intracluster Medium out to $R_{200}$ in Abell 2319
• Planck intermediate results. III. The relation between galaxy cluster mass and Sunyaev-Zeldovich signal
• First Sunyaev-Zel'dovich mapping with the NIKA2 camera: Implication of cluster substructures for the pressure profile and mass estimate
• The XMM Cluster Outskirts Project (X-COP): Physical conditions to the virial radius of Abell 2142
• Reconstructing mass profiles of simulated galaxy clusters by combining Sunyaev-Zeldovich and X-ray images
• Joint deprojection of Sunyaev-Zeldovich and X-ray images of galaxy clusters
• Brightest Cluster Galaxies and Core Gas Density in REXCESS Clusters
• The gravitational field of X-COP galaxy clusters
• Evidence for ram pressure stripping in a cluster of galaxies at z=0.7
• Resolving galaxy cluster gas properties at z~1 with XMM-Newton and Chandra
• Testing adiabatic contraction of dark matter in fossil group candidates
• Characterizing hydrostatic mass bias with Mock-X
• Non-parametric deprojection of NIKA SZ observations: Pressure distribution in the Planck-discovered cluster PSZ1 G045.85+57.71
• Resolving the hydrostatic mass profiles of galaxy clusters at z~1 with XMM-Newton and Chandra
• Mapping the hot gas temperature in galaxy clusters using X-ray and Sunyaev-Zel'dovich imaging
• A multi-instrument non-parametric reconstruction of the electron pressure profile in the galaxy cluster CLJ1226.9+3332
• The dark matter distribution in z~0.5 clusters of galaxies. I : Determining scaling relations with weak lensing masses
• Evolution of the Thermodynamic Properties of Clusters of Galaxies out to Redshift of 1.8
• The Most Massive galaxy Clusters (M2C) across cosmic time: link between radial total mass distribution and dynamical state
• The SZ flux-mass ($Y$-$M$) relation at low halo masses: improvements with symbolic regression and strong constraints on baryonic feedback
• Recovering galaxy cluster gas density profiles with XMM-Newton and Chandra
• Augmenting astrophysical scaling relations with machine learning: application to reducing the Sunyaev-Zeldovich flux-mass scatter
• Linking a universal gas density profile to the core-excised X-ray luminosity in galaxy clusters up to z ~ 1.1
• PACT. II. Pressure profiles of galaxy clusters using Planck and ACT
• The Astrophysics of the Intracluster Plasma
• A Grand Design for Galaxy Clusters: Connections and Predictions
• Multi-probe analysis of the galaxy cluster CL J1226.9+3332: Hydrostatic mass and hydrostatic-to-lensing bias
• Decoding X-ray observations from centres of galaxy clusters using MCMC
• Optical and X-ray profiles in the REXCESS sample of galaxy clusters
• Testing generalized scalar-tensor theories of gravity with clusters of galaxies
• CHEX-MATE: A non-parametric deep learning technique to deproject and deconvolve galaxy cluster X-ray temperature profiles
• CHEX-MATE: the intracluster medium entropy distribution in the gravity-dominated regime
• LIGHTS. A robust technique to identify galaxy edges
• Evolution of X-ray galaxy Cluster Properties in a Representative Sample (EXCPReS). Optimal binning for temperature profile extraction
• Exploiting the high-resolution NIKA2 data to study the intracluster medium and dynamical state of ACT-CL J0240.0+0116
• X-ray characterisation of the massive galaxy clusterClG-J104803.7+313843 at z=0.76 with XMM-Newton