X-ray cavities and temperature jumps in the environment of the strong cool core cluster Abell 2390

Abstract

We present results based on the systematic analysis of high resolution 95 ks Chandra observations of the strong cool core cluster Abell 2390 at the redshift of z= 0.228 that hosts an energetic radio AGN. This analysis has enabled us to investigate five X-ray deficient cavities in the atmosphere of Abell 2390 within central 30". Presence of these cavities have been confirmed through a variety of image processing techniques like, the surface brightness profiles, unsharp masked image, as well as 2D elliptical model subtracted residual map. Temperature profile as well as 2D temperature map revealed structures in the distribution of ICM, in the sense that ICM in the NW direction is cooler than that on the SE direction. Temperature jump in all directions is evident near 25" (90.5 kpc) corresponding to the average Mach number 1.44$\pm$0.05, while another jump from 7.47 keV to 9.10 keV at 68" (246 kpc) in the north-west direction, corresponding to Mach number 1.22$\pm$0.06 and these jumps are associated with the cold fronts. Tricolour map as well as hardness ratio map detects cool gas clumps in the central 30 kpc region of temperature $4.45_{-0.10}^{+0.16}$ keV. The entropy profile derived from the X-ray analysis is found to fall systematically inward in a power-law fashion and exhibits a floor near 12.20$\pm$2.54 keV cm${}^2$ in the central region. This flattening of the entropy profile in the core region confirms the intermittent heating at the centre by AGN. The diffuse radio emission map at 1.4\,GHz using VLA L-band data exhibits highly asymmetric morphology with an edge in the north-west direction coinciding with the X-ray edge seen in the unsharp mask image.

22 pages, 13 figures, accepted for publication in Ap&SS

References in corpus (11)

• Heating Hot Atmospheres with Active Galactic Nuclei
• Intracluster Medium Entropy Profiles for a Chandra Archival Sample of Galaxy Clusters
• Chandra temperature profiles for a sample of nearby relaxed galaxy clusters
• Contour binning: a new technique for spatially-resolved X-ray spectroscopy applied to Cassiopeia A
• Probing the Dark Matter and Gas Fraction in Relaxed Galaxy Groups with X-ray observations from Chandra and XMM
• Temperature and abundance profiles of hot gas in galaxy groups - I. Results and statistical analysis
• A Chandra archival study of the temperature and metal abundance profiles in hot Galaxy Clusters at 0.1 < z < 0.3
• A Lensing Survey of X-ray Luminous Galaxy Clusters at Redshift z ~ 0.2: II: CFH12k Weak Lensing Analysis and Global Correlations
• Evidence for recent star formation in BCGs: a correspondence between blue cores and UV excess
• Multiwavelength Mass Comparisons of the z~0.3 CNOC Cluster Sample
• Multiphase Signatures of AGN Feedback in Abell 2597

Cited by in corpus (24)

• A LOFAR study of non-merging massive galaxy clusters
• LOFAR Observations of X-ray Cavity Systems
• Mpc-scale diffuse radio emission in two massive cool-core clusters of galaxies
• Detection of a pair of prominent X-ray cavities in Abell 3847
• Cavities, shocks and a cold front around 3C 320
• AGN Feedback in Groups and Clusters of Galaxies
• Merging cold front and AGN feedback in the peculiar galaxy cluster Abell 2626
• Thermodynamic evolution of the $z=1.75$ galaxy cluster IDCS J1426.5+3508
• AGN driven perturbations in the intra-cluster medium of cool core cluster ZwCl 2701
• An Off-Axis Galaxy Cluster Merger: Abell 0141
• A detailed study of X-ray cavities in the intracluster environment of the cool core cluster Abell 3017
• Euclid: Early Release Observations -- The Intracluster Light of Abell 2390
• Hyenas: X-ray Bubbles and Cavities in the Intra-Group Medium
• Chasing ICM cooling and AGN feedback from the macro to the meso scales in the galaxy cluster ZwCl 235
• Weak Lensing analysis of Abell 2390 using short exposures
• Extended Line Emission in the BCG of Abell 2390
• Sloshing and spiral structures breeding a putative radio mini-halo in the environment of a cool-core cluster Abell 795
• Sloshing Cold Fronts in Galaxy Cluster Abell 2566
• Imaging and photometric studies of NGC 1316 (Fornax A) using Astrosat/UVIT
• Constraining the Nature of Dark Matter from Tidal Radii of Cluster Galaxy Subhalos
• Cool-core, X-ray cavities and cold front revealed in RXCJ0352.9+1941 cluster by Chandra and GMRT observations
• Evidence of sloshing-driven mini-halo formation in the cool-core cluster RXCJ1558.3-1410
• Deciphering the ultra-steep spectrum diffuse radio sources discovered in the cool-core cluster Abell~980
• Investigating AGN feedback in H$\alpha$-luminous galaxy clusters: first Chandra X-ray analysis of Abell 2009