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DLSCL J0916.2+2951: Discovery of the Musket Ball Cluster

4/20/2012

 
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Copied from Chandra press release.

Using a combination of powerful observatories in space and on the ground, astronomers have observed a violent collision between two galaxy clusters in which so-called normal matter has been wrenched apart from dark matterthrough a violent collision between two galaxy clusters.

The newly discovered galaxy cluster is called DLSCL J0916.2+2951. It is similar to the Bullet Cluster, the first system in which the separation of dark and normal matter was observed, but with some important differences. The newly discovered system has been nicknamed the "Musket Ball Cluster" because the cluster collision is older and slower than the Bullet Cluster.


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An Interview with Will Dawson

4/20/2012

 
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Copied from Chandra::Chronicles

Astronomy can generate a large amount of attention from the public, but the number of working astronomers is smaller than the number of researchers in many other academic fields. So, when people get over their surprise at meeting a real astronomer, they often ask "How did you end up working in this field?". There are many different answers, but an interesting one is provided here by Will Dawson from the University of California, Davis, who kindly explains his career change from engineering to astronomy. We were very satisfied to hear that part of his motivation for this big change came from the publicity generated by the Bullet Cluster in 2006.

Will is the first author of a recent paper describing the discovery of the Musket Ball Cluster.


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    I am an astrophysics post-doc at Lawrence Livermore National Lab and the University of California Davis, just trying to solve the mystery of Dark Matter.
    Actual research doesn't leave much time for blogging but I will keep this blog updated with research milestones and highlights.

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