Tracing Gas Motions in the Centaurus Cluster

@article{Graham2006TracingGM,
  title={Tracing Gas Motions in the Centaurus Cluster},
  author={James R. Graham and Andrew C. Fabian and Jeremy S Sanders and R. Glenn Morris},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2006},
  volume={368},
  pages={1369-1376}
}
We apply the stochastic model of iron transport developed by Rebusco et al. (2005) to the Centaurus cluster. Using this model, we find that an effective diffusion coefficient D in the range 2 x 10{sup 28} - 4 x 10{sup 28} cm{sup 2}s{sup -1} can approximately reproduce the observed abundance distribution. Reproducing the flat central profile and sharp drop around 30-70 kpc, however, requires a diffusion coefficient that drops rapidly with radius so that D > 4 x 10{sup 28} cm{sup 2}s{sup -1} only… 
Constraining gas motions in the Centaurus cluster using X-ray surface brightness fluctuations and metal diffusion
We compare two different methods of constraining the characteristic velocity and spatial scales of gas motions in the X-ray bright, nearby Centaurus cluster, using new deep (760ks) Chandra
Searching for the missing iron mass in the core of the Centaurus cluster
We re-analyse a combined 198 ks Chandra observation of NGC4696, the brightest galaxy of the Centaurus cluster. We extract temperature and metallicity profiles from the data, and we confirm the
Heating and Cooling in the Perseus Cluster Core
It is well known that the radiative cooling time of the hot X-ray emitting gas in the cores of most clusters of galaxies is less than 10^10 yr. In many clusters the gas temperature also drops towards
Effect of turbulent diffusion on iron abundance profiles
We compare the observed peaked iron abundance profiles for a small sample of groups and clusters with the predictions of a simple model involving the metal ejection from the brightest galaxy and the
Enrichment in the Centaurus cluster of galaxies
We perform a detailed spatially resolved, spectroscopic, analysis of the core of the Centaurus cluster of galaxies using a deep Chandra X-ray observation and XMM-Newton data. The Centaurus cluster
Suzaku Observations of the Centaurus Cluster: Absence of Bulk Motions in the Intracluster Medium
The Centaurus cluster (z=0.0104) was observed with the X-ray Imaging Spectrometer (XIS) onboard the Suzaku X-ray satellite in three pointings, one centered on the cluster core and the other two
Width of X-ray lines as a diagnostic of gas motions in cooling flows
The dissipation of turbulent gas motions is one of the likely mechanisms that has been proposed to heat the intracluster medium (ICM) in the cores of clusters and groups of galaxies. We consider the
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
A very deep Chandra view of metals, sloshing and feedback in the Centaurus cluster of galaxies
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
Metal distribution in sloshing galaxy clusters: the case of A496
We report results from a detailed study of the sloshing gas in the core of A496. We detect the low temperature/entropy spiral feature found in several cores, we also find that conduction between the
...
...

References

SHOWING 1-10 OF 55 REFERENCES
Spatially resolved X‐ray spectroscopy of the core of the Centaurus cluster
ABSTRA C T We present Chandra data from a 31.7-ks observation of the Centaurus cluster, using the ACIS-S detector. Images of the X-ray emission show a plume-like feature at the centre of the cluster,
Impact of stochastic gas motions on galaxy cluster abundance profiles
The impact of stochastic gas motions on the metal distribution in cluster cores is evaluated. Peaked abundance profiles are a characteristic feature of clusters with cool cores, and abundance peaks
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
Circulation Flows: Cooling Flows with Bubble Return
The failure of the XMM-Newton and Chandra X-ray telescopes to detect cooling gas in elliptical galaxies and clusters of galaxies has led many to adopt the position that the gas is not cooling at all
Deconvolution of ASCA X-ray data — II. Radial temperature and metallicity profiles for 106 galaxy clusters
In Paper I we presented a methodology to recover the spatial variations of properties of the intracluster gas from ASCA X-ray satellite observations of galaxy clusters. We verified the correctness of
Mapping small-scale temperature and abundance structures in the core of the Perseus cluster
We report further results from a 191-ks Chandra observation of the core of the Perseus cluster, Abell 426. The emission-weighted temperature and abundance structures are mapped in detail. There are
Turbulent Heating of Galaxy-Cluster Plasmas
A number of studies suggest that turbulent heating plays an important role in the thermal balance of galaxy-cluster plasmas. In this paper, we construct a model of intracluster plasmas in which
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,
Non-thermal X-rays, a high-abundance ridge and fossil bubbles in the core of the Perseus cluster of galaxies
Using a deep Chandra observation of the Perseus cluster of galaxies, we find a high-abundance shell 250 arcsec (93 kpc) from the central nucleus. This ridge lies at the edge of the Perseus radio
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
...
...