MUSIC: Multiwavelength Sample of Interacting Clusters

C. Ferrari (1) , S. Maurogordato (1) , C. Benoist (2) , A. Cappi (3) , E. Slezak (4)

1 LAGRANGE - Joseph Louis LAGRANGE
2 IGBMC - Institut de Génétique et de Biologie Moléculaire et Cellulaire
3 OAC - INAF - Osservatorio Astronomico di Capodimonte
4 CASSIOPEE - Laboratoire de Cosmologie, Astrophysique Stellaire & Solaire, de Planétologie et de Mécanique des Fluides

In the framework of the hierarchical model of structure formation, galaxy clusters form through the accretion and merging of substructures of smaller mass. Our goal is to characterize the physics and dynamics of these processes through the study of merging clusters. For this purpose we have built a sample of 10 low--redshift clusters viewed at different stages of the merging process, and observed at optical, X--ray and radio wavelengths. In the following we will present the results obtained through the optical analysis on the first targets of our sample, i.e. A521 and A3921.

Domaines: Cosmologie et astrophysique extra-galactique [astro-ph.CO]

C. Ferrari, S. Maurogordato, C. Benoist, A. Cappi, E. Slezak. MUSIC: Multiwavelength Sample of Interacting Clusters. Clusters of Galaxies: Probes of Cosmological Structure and Galaxy Evolution, from the Carnegie Observatories Centennial Symposia. Carnegie Observatories Astrophysics Series, 2004, Pasadena, United States. ⟨hal-03648737⟩