Since the discovery of the “bullet cluster ” several similar cases have been uncovered suggesting relative velocities well beyond the tail of high speed collisions predicted by the concordance ΛCDM model. However, quantifying such post–merger events with hydrodynamical models requires a wide coverage of possible initial conditions. Here we show that it is simpler to interpret pre–merger cases, such as A1750, where the gas between the colliding clusters is modestly affected, so that the initial conditions are clear. We analyze publicly available Chandra data confirming a significant increase in the projected X–ray temperature between the two cluster centers in A1750 consistent with our expectations for a merging cluster. We model this system...
Abstract. The Bullet Cluster (1E0657-56) merger is of exceptional interest for testing the standard ...
Mergers between galaxy clusters are an important stage in the formation of the large-scale structure...
We show that the fast moving component of the “bullet cluster ” (1E0657-56) can induce potentially r...
Deep Chandra exposures of the hot galaxy cluster 1E0657-56 have revealed that the cluster is observe...
The distinctive cometary X-ray morphology of the recently discovered massive galaxy cluster “El Gord...
The observational features of the massive galaxy cluster "El Gordo" (ACT-CL J0102-4915), s...
Using a combination of Chandra and XMM observations, we confirmed the presence of a significant velo...
To quantify how rare the bullet-cluster-like high-velocity merging systems are in the standard Lambd...
Abell 1758 was classified as a single rich cluster of galaxies by Abell, but a ROSAT observation sho...
The Bullet Cluster (1E 0657-56) is well-known as providing visual evidence of dark matter but it is ...
Shock waves driven in the intergalactic medium during the merging of galaxy clusters have been obser...
Shock waves driven in the intergalactic medium during the merging of galaxy clusters have been obser...
El Gordo (ACT-CL J0102-4915) is an extremely massive galaxy cluster (M200 ≈ 3 × 1015 M·) at redshift...
Located at z = 0.203, A2163 is a rich galaxy cluster with an intra-cluster medium (ICM) th...
International audienceWe investigate the physical properties, geometry and dynamics of the massive c...
Abstract. The Bullet Cluster (1E0657-56) merger is of exceptional interest for testing the standard ...
Mergers between galaxy clusters are an important stage in the formation of the large-scale structure...
We show that the fast moving component of the “bullet cluster ” (1E0657-56) can induce potentially r...
Deep Chandra exposures of the hot galaxy cluster 1E0657-56 have revealed that the cluster is observe...
The distinctive cometary X-ray morphology of the recently discovered massive galaxy cluster “El Gord...
The observational features of the massive galaxy cluster "El Gordo" (ACT-CL J0102-4915), s...
Using a combination of Chandra and XMM observations, we confirmed the presence of a significant velo...
To quantify how rare the bullet-cluster-like high-velocity merging systems are in the standard Lambd...
Abell 1758 was classified as a single rich cluster of galaxies by Abell, but a ROSAT observation sho...
The Bullet Cluster (1E 0657-56) is well-known as providing visual evidence of dark matter but it is ...
Shock waves driven in the intergalactic medium during the merging of galaxy clusters have been obser...
Shock waves driven in the intergalactic medium during the merging of galaxy clusters have been obser...
El Gordo (ACT-CL J0102-4915) is an extremely massive galaxy cluster (M200 ≈ 3 × 1015 M·) at redshift...
Located at z = 0.203, A2163 is a rich galaxy cluster with an intra-cluster medium (ICM) th...
International audienceWe investigate the physical properties, geometry and dynamics of the massive c...
Abstract. The Bullet Cluster (1E0657-56) merger is of exceptional interest for testing the standard ...
Mergers between galaxy clusters are an important stage in the formation of the large-scale structure...
We show that the fast moving component of the “bullet cluster ” (1E0657-56) can induce potentially r...