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Kelvin-Helmholtz instabilities at the sloshing cold fronts in the Virgo cluster as a measure for the effective ICM viscosity
E. Roediger, R. P. Kraft, W. R. Forman +2
Sloshing cold fronts (CFs) arise from minor merger triggered gas sloshing. Their detailed structure depends on the properties of the intra-cluster medium (ICM): hydrodynamical simu…
The nature of filamentary cold gas in the core of the Virgo Cluster
N. Werner, J. B. R. Oonk, R. E. A. Canning +10
We present a multi-wavelength study of the emission-line nebulae located southeast of the nucleus of M87, the central dominant galaxy of the Virgo Cluster. We report the detection…
Gas Sloshing and Radio Galaxy Dynamics in the Core of the 3C449 Group
Dharam V. Lal, Ralph P. Kraft, Scott W. Randall +7
We present results from a 140 ks Chandra/ACIS-S observation of the hot gas around the canonical FR I radio galaxy 3C 449. An earlier, shorter 30 ks Chandra observation of the group…
The duty cycle of radio-mode feedback in complete samples of clusters
L. Bîrzan, D. A. Rafferty, P. E. J. Nulsen +4
The Chandra X-ray Observatory has revealed X-ray bubbles in the intracluster medium (ICM) of many nearby cooling flow clusters. The bubbles trace feedback that is thought to couple…
Large-scale Motions in the Perseus Galaxy Cluster
A. Simionescu, N. Werner, O. Urban +6
By combining large-scale mosaics of ROSAT PSPC, XMM-Newton, and Suzaku X-ray observations, we present evidence for large-scale motions in the intracluster medium of the nearby, X-r…
Irregular sloshing cold fronts in the nearby merging groups NGC 7618 and UGC 12491: evidence for Kelvin-Helmholtz instabilities
E. Roediger, R. P. Kraft, M. E. Machacek +4
We present results from two \sim30 ks Chandra observations of the hot atmospheres of the merging galaxy groups centered around NGC 7618 and UGC 12491. Our images show the presence…