INVESTIGADORES
RAGONE FIGUEROA Cinthia Judiht
congresos y reuniones científicas
Título:
Evolution of Central Galaxies Alignments in Cluster Cosmological Simulations
Autor/es:
RAGONE FIGUEROA, CINTHIA; GRANATO, GIAN LUIGI; BORGANI, STEFANO
Lugar:
Viedma
Reunión:
Congreso; Reunión de la Asociación Argentina de Astronomía; 2019
Institución organizadora:
Asociación Argentina de Astronomía
Resumen:
It is now well established that in the local Universe the brightest cluster galaxies (BCGs) are often elongated in the same direction as their host clusters. Nevertheless, little is known at higher redshifts where the determination of the position angles of galaxies and clusters presents more inconveniences.We examine clusters in cosmological hydro-simulations in order to provide a glimpse into how the BCG-Cluster alignment has evolved over time. The cluster position angles were measured using both dark matter and galaxies finding in both cases strong indications of an alignment between the cluster and the BCG up to redshift 1, results that are in line with recent observational claims.
