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20002026
most citedFormation and structure of halos in a warm dark matter cosmology

254 citations · 4k across the 119 of their papers we have counts for

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Showing astro-ph.COShow all

10 papers · 1 filter

astro-ph.CO2015★ 20 cited

Fossil group origins - VI. Global X-ray scaling relations of fossil galaxy clusters

A. Kundert, F. Gastaldello, E. D'Onghia +11

We present the first pointed X-ray observations of 10 candidate fossil galaxy groups and clusters. With these Suzaku observations, we determine global temperatures and bolometric X…

astro-ph.CO2014★ 19 cited

Fossil Groups Origins III. Characterization of the sample and observational properties of fossil systems

S. Zarattini, R. Barrena, M. Girardi +15

(Abridged) Fossil systems are group- or cluster-sized objects whose luminosity is dominated by a very massive central galaxy. In the current cold dark matter scenario, these object…

astro-ph.CO2014★ 43 cited

Fossil Groups Origins III. The relation between optical and X-ray luminosities

M. Girardi, J. A. L. Aguerri, S. De Grandi +11

This study is part of the FOssil Groups Origin (FOGO) project which aims at carrying out a systematic and multiwavelength study of a large sample of fossil systems. Here we focus o…

astro-ph.CO2011★ 37 cited

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…

astro-ph.CO2011★ 16 cited

Two fossil groups of galaxies at z~0.4 in the COSMOS: accelerated stellar-mass build-up, different progenitors

D. Pierini, S. Giodini, A. Finoguenov +12

We report on 2 fossil groups of galaxies at z=0.425 and 0.372 discovered in the Cosmic Evolution Survey (COSMOS) area. Selected as X-ray extended sources, they have total masses (M…

astro-ph.CO2011★ 50 cited

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…