Direct observation of the X-ray counterpart of the Hα filaments and of the sloshing spiral in the Perseus galaxy cluster

Abstract

Deep Chandra observations of the Perseus galaxy cluster have allowed for the discovery of X-ray counterparts to the Hα filamentary structures and of a sloshing spiral. However, both components are extremely faint, and their study is largely hindered by the volume-filling hot intracluster medium (ICM). Using the Poisson General Morphological Component Analysis (pGMCA) algorithm, a blind source separation method adapted for Poissonian statistics, we were able to extract detailed, clean morphological maps of these components. We then introduced a template fitting method to investigate their spectral characteristics. We report the first direct observation of about 1.35 keV low-energy emission from the sloshing spiral, and produce the most detailed and unpolluted map of the X-rays filaments thus far obtained.

arXiv commentsubmitted to ApJL

References in corpus (36)

• The Leiden/Argentine/Bonn (LAB) Survey of Galactic HI: Final data release of the combined LDS and IAR surveys with improved stray-radiation corrections
• Observational Evidence of AGN Feedback
• A very deep Chandra observation of the Perseus cluster: shocks, ripples and conduction
• Chandra X-ray Observations of the Hydra A Cluster: An Interaction Between the Radio Source and the X-Ray-Emitting Gas
• Chandra imaging of the complex X-ray core of the Perseus cluster
• Chandra Observation of Abell 2142: Survival of Dense Subcluster Cores in a Merger
• Chaotic cold accretion onto black holes
• The detection of molecular gas in the central galaxies of cooling-flow clusters
• A moving cold front in the intergalactic medium of A3667
• Thermal Instability & the Feedback Regulation of Hot Halos in Clusters, Groups, and Galaxies
• The origin of cold fronts in the cores of relaxed galaxy clusters
• On the Nature of the NGC 1275 System
• The relationship between the optical Halpha filaments and the X-ray emission in the core of the Perseus cluster
• A deeper X-ray study of the core of the Perseus galaxy cluster: the power of sound waves and the distribution of metals and cosmic rays
• Raining on black holes and massive galaxies: the top-down multiphase condensation model
• Magnetic support of the optical emission line filaments in NGC 1275
• Ubiquitous cold and massive filaments in cool core clusters
• Physics of the Merging Clusters Cygnus A, A3667, and A2065
• The energy source of the filaments around the giant galaxy NGC1275
• A Galaxy-Scale Fountain of Cold Molecular Gas Pumped by a Black Hole
• Radial metal abundance profiles in the intra-cluster medium of cool-core galaxy clusters, groups, and ellipticals
• Driving massive molecular gas flows in central cluster galaxies with AGN feedback
• Gammapy: A Python package for gamma-ray astronomy
• Non-thermal X-rays, a high abundance ridge and fossil bubbles in the core of the Perseus cluster of galaxies
• Cold Fronts: Probes of Plasma Astrophysics in Galaxy Clusters
• Cold gas in the Perseus cluster core: Excitation of molecular gas in filaments
• Overview of the Advanced X-ray Imaging Satellite (AXIS)
• Sparsity and adaptivity for the blind separation of partially correlated sources
• The split in the ancient cold front in the Perseus cluster
• Non-Kolmogorov turbulence in multiphase intracluster medium driven by cold gas precipitation and AGN jets
• A novel method for component separation of extended sources in X-ray astronomy
• X-ray Analysis of Filaments in Galaxy Clusters
• Discovery of a diffuse optical line emitting halo in the core of the Centaurus cluster of galaxies: Line emission outside the protection of the filaments
• AGN feedback duty cycle in Planck SZ selected clusters using Chandra observations
• H$\alpha$-X-ray Surface Brightness Correlation for Filaments in Cooling Flow Clusters
• Waking the monster: the onset of AGN feedback in galaxy clusters hosting young central radio galaxies