CLUSTERS OF GALAXIES Cluster Mergers and Cold Fronts.
27
CLUSTERS OF GALAXIES Cluster Mergers and Cold Fronts
-
Upload
justin-bond -
Category
Documents
-
view
224 -
download
0
Transcript of CLUSTERS OF GALAXIES Cluster Mergers and Cold Fronts.
CLUSTERS OF GALAXIES
Cluster Mergers and Cold Fronts
Show 2dF Movie
Structure Formation
Cluster Formation
GasDark Matter
X-rayTemp
We discuss some of the physical processes that occurs during cluster merger
V
Cluster Mergers
Cluster MergerDensity Entropy
1E0657Markevitch et al 2001.
1E0657
Cold Fronts In Merger Clusters
CHANDRA OBSERVATION OF A2142
M. Markevitch et al. 2000, ApJ, 541, 542
CHANDRA OBSERVATION OF A3667
A. Vikhlinin, M. Markevitch, S. S. Murray 2000, ApJ, 551, 160
The most natural explanation is that A3667 hosts a moving dense, cold gas cloud
Interpretation for the Cold Front
The ratio between the pressure in region 0 and 1 gives the cloud speed
The cold front is the contact surface
The external gas slows down at leadingedge but reaccelerates as it is squeezed to the sides
![Developed turbulence and non-linear amplification …...[1]. The continued mergers of galaxies, filaments, and galaxy clusters inject turbulence into the intergalactic medium via](https://static.fdocuments.in/doc/165x107/5ec92b1afc0eff656e5a6a43/developed-turbulence-and-non-linear-ampliication-1-the-continued-mergers.jpg)
