Stellar populations in CL0048-2942: a galaxy cluster at z similar to 0.64

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2004

Autores

Roos, MS (Autor) Outra; Lobo, C (Autor) FCUP; Durret, F (Autor) Outra; Iovino, A (Autor) Outra; Marquez, I (Autor) Outra

Ata de Conferência Internacional

Título: INTERPLAY AMONG BLACK HOLES, STARS AND ISM IN GALACTIC NUCLEI

Páginas: 207-208

222nd Symposium of the International-Astronomical-Union

Gramado, BRAZIL, MAR 01-05, 2004

Indexação

ISI Web of Knowledge - 0 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Física

Outras Informações

ID Authenticus: P-000-D0C

DOI: 10.1017/s1743921304002078

Abstract (EN): We present and discuss results concerning a study of stellar populations in the galaxies belonging to CL 0048-2942, a cluster at intermediate redshift (z = 0.64), and to the field. This study gives insight on the evolutionary stage of the cluster galaxies at different radial distances from the cluster centre. We find a population gradient within the cluster: centre galaxies host older stars whereas galaxies located towards the cluster outskirts are predominantly made of less evolved stars. This effect is even more pronounced as we move outside the cluster, into the field. This is interpreted as star formation being more intense in the field, or rather, suppressed within the cluster, particulary as we move towards its centre.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 2