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Robust Quantification of Galaxy Cluster Morphology Using Asymmetry and Central Concentration
D. Nurgaliev, M. McDonald, B. A. Benson +3
We present a novel quantitative scheme of cluster classification based on the morphological properties that are manifested in X-ray images. We use a conventional radial surface bri…
SPT-CLJ2040-4451: An SZ-Selected Galaxy Cluster at z = 1.478 With Significant Ongoing Star Formation
M. B. Bayliss, M. L. N. Ashby, J. Ruel +76
SPT-CLJ2040-4451 -- spectroscopically confirmed at z = 1.478 -- is the highest redshift galaxy cluster yet discovered via the Sunyaev-Zel'dovich effect. SPT-CLJ2040-4451 was a cand…
The Stellar Mass Growth of Brightest Cluster Galaxies in the IRAC Shallow Cluster Survey
Yen-Ting Lin, Mark Brodwin, Anthony H. Gonzalez +4
The details of the stellar mass assembly of brightest cluster galaxies (BCGs) remain an unresolved problem in galaxy formation. We have developed a novel approach that allows us to…
Dark Matter Subhalos and the X-ray Morphology of the Coma Cluster
Felipe Andrade-Santos, Paul E. J. Nulsen, Ralph P. Kraft +4
Structure formation models predict that clusters of galaxies contain numerous massive subhalos. The gravity of a subhalo in a cluster compresses the surrounding intracluster gas an…