233 citations · 1.8k across the 39 of their papers we have counts for
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Internal dynamics of Abell 2254: a merging galaxy cluster with a clumpy, diffuse radio emission
M. Girardi, S. Bardelli, R. Barrena +3
We explore the internal dynamics of Abell 2254, which has been shown to host a very clumpy and irregular radio halo. Our analysis is mainly based on redshift data for 128 galaxies…
Fossil groups origins II. Unveiling the formation of the brightest group galaxies through their scaling relations
J. Mendez-Abreu, J. A. L. Aguerri, R. Barrena +11
(Abridged) Fossil systems are galaxy associations dominated by a relatively isolated, bright elliptical galaxy, surrounded by a group of smaller galaxies lacking L* objects. We ana…
Internal dynamics of the galaxy cluster Abell 545
R. Barrena, M. Girardi, W. Boschin +3
Diffuse radio emission in galaxy clusters, and their connection with cluster mergers, are still debated. We seek to explore the internal dynamics of the radio halo cluster Abell 54…
Fossil Groups Origins: I. RX J105453.3+552102 a very massive and relaxed system at z~0.5
J. A. L. Aguerri, M. Girardi, W. Boschin +11
The most accepted scenario for the origin of fossil groups (FGs) is that they are galaxy associations in which the merging rate was fast and efficient. These systems have assembled…