A very deep Chandra view of metals, sloshing and feedback in the Centaurus cluster of galaxies

  title={A very deep Chandra view of metals, sloshing and feedback in the Centaurus cluster of galaxies},
  author={Jeremy S Sanders and Andrew C. Fabian and Gregory B. Taylor and Helen R. Russell and Katherine M. Blundell and Rebecca E. A. Canning and Julie Hlavacek-Larrondo and S. A. Walker and Caleb K. Grimes},
  journal={Monthly Notices of the Royal Astronomical Society},
We examine deep Chandra X-ray observations of the Centaurus cluster of galaxies, Abell 3526. Applying a gradient magnitude filter reveals a wealth of structure, from filamentary soft emission on 100 pc (0.5 arcsec) scales close to the nucleus to features 10 s of kpc in size at larger radii. The cluster contains multiple high-metallicity regions with sharp edges. Relative to an azimuthal average, the deviations of metallicity and surface brightness are correlated, and the temperature is… 
Revealing a Highly Dynamic Cluster Core in Abell 1664 with Chandra
We present new, deep (245 ks) Chandra observations of the galaxy cluster Abell 1664 (z = 0.1283). These images reveal rich structure, including elongation and accompanying compressions of the X-ray
Deep Chandra study of the truncated cool core of the Ophiuchus cluster
We present the results of a deep (280 ks) Chandra observation of the Ophiuchus cluster, the second-brightest galaxy cluster in the X-ray sky. The cluster hosts a truncated cool core, with a
The mergers in Abell 2256: displaced gas and its connection to the radio-emitting plasma
We present the results of deep Chandra and XMM–Newton X-ray imaging and spatially resolved spectroscopy of Abell 2256, a nearby (z = 0.058) galaxy cluster experiencing multiple mergers and
The Megaparsec-scale Gas-sloshing Spiral in the Remnant Cool Core Cluster Abell 1763
We present a multiwavelength study of the massive galaxy cluster Abell 1763 at redshift z = 0.231. Image analysis of a 19.6 ks Chandra archival observation reveals a cluster-wide spiral of enhanced
Extended X-Ray Study of M49: The Frontier of the Virgo Cluster
The M49 group, residing outside the virial radius of the Virgo cluster, is falling onto the cluster from the south. We report results from deep XMM-Newton mosaic observations of M49. Its hot gas
HST imaging of the dusty filaments and nucleus swirl in NGC4696 at the centre of the Centaurus Cluster
Narrow-band HST imaging has resolved the detailed internal structure of the 10 kpc diameter H α+[N II] emission line nebulosity in NGC4696, the central galaxy in the nearby Centaurus cluster, showing
We present an analysis of the complex gas hydrodynamics in the X-ray-luminous galaxy cluster RX J1347.5–1145 caught in the act of merging with a subcluster to its southeast using a combined 186 ks
Substructures in the core of Abell 2319
We analysed the deep archival Chandra observations of the high-temperature galaxy cluster Abell~2319 to investigate the prominent cold front in its core. The main sharp arc of the front shows
A Multiwavelength Study of the Cool Core Cluster MACS J1447.4+0827
Clusters of galaxies are outstanding laboratories for understanding the physics of supermassive black hole (SMBH) feedback. Here we present the first Chandra, Karl G. Jansky Very Large Array, and
Ubiquitous cold and massive filaments in cool core clusters
Multi-phase filamentary structures around brightest cluster galaxies (BCG) are likely a key step of AGN-feedback. We observed molecular gas in three cool cluster cores, namely Centaurus, Abell S1101,


Giant cavities, cooling and metallicity substructure in Abell 2204
We present results from deep Chandra and XMM-Newton observations of the relaxed X-ray luminous galaxy cluster Abell 2204. We detect metallicity inhomogeneities in the intracluster medium on a variety
Herschel observations of the Centaurus cluster – the dynamics of cold gas in a cool core
Brightest cluster galaxies (BCGs) in the cores of galaxy clusters have distinctly different properties from other low-redshift massive ellipticals. The majority of the BCGs in coolcore clusters show
Exploring the origin of a large cavity in Abell 1795 using deep Chandra observations
We examine deep stacked Chandra observations of the galaxy cluster Abell 1795 (over 700ks) to study in depth a large (34 kpc radius) cavity in the X-ray emission. Curiously, despite the large energy
We present the first results from a very deep (∼650 ks) Chandra X-ray observation of A2052, as well as archival Very Large Array radio observations. The data reveal detailed structure in the inner
The extended Hα‐emitting filaments surrounding NGC 4696, the central galaxy of the Centaurus cluster
We present images of NGC 4696, the central galaxy in the Centaurus cluster, showing the large extent of cool filaments that are bright in Hα line emission. These filaments share the detailed
A deep Chandra observation of the Perseus cluster: shocks and ripples
We present preliminary results from a deep observation lasting almost 200 ks of the centre of the Perseus cluster of galaxies around NGC 1275. The X-ray surface brightness of the intracluster gas
A deep spectroscopic study of the filamentary nebulosity in NGC 4696, the brightest cluster galaxy in the Centaurus cluster
We present results of deep integral-field spectroscopy observations using high-resolution optical (4150–7200 A) VLT VIsible MultiObject Spectrograph spectra of NGC 4696, the dominant galaxy in the
Two-Phase Intracluster Medium in the Centaurus Cluster
ASCA and ROSAT data of the Centaurus Cluster, containing a cD galaxy NGC 4696, were analyzed in a partial reanalysis of the work of Fukazawa et al., Fabian et al., and Allen & Fabian. Radial
A deep Chandra observation of the Centaurus cluster: bubbles, filaments and edges
X-ray images and gas temperatures taken from a deep {approx}200 ks Chandra observation of the Centaurus cluster are presented. Multiple inner bubbles and outer semicircular edges are revealed,
Gas sloshing, cold fronts, Kelvin–Helmholtz instabilities and the merger history of the cluster of galaxies Abell 496
We investigate the origin and nature of the multiple sloshing cold fronts in the core of Abell 496 by direct comparison between observations and dedicated hydrodynamical simulations. Our simulations