| Texto completo | |
| Autor(es): |
Sampaio, V. M.
[1, 2]
;
de Carvalho, R. R.
[2]
;
Ferreras, I
[3, 4, 5]
;
Lagana, T. F.
[2]
;
Ribeiro, A. L. B.
[6]
;
Rembold, S. B.
[7]
Número total de Autores: 6
|
| Afiliação do(s) autor(es): | [1] INPE MCT, Div Astrofis, BR-12227010 Sao Jose Dos Campos, SP - Brazil
[2] NAT Univ Cruzeiro do Sul, Univ Cidade Sao Paulo, BR-01506000 Sao Paulo, SP - Brazil
[3] Univ La Laguna, Dept Astrofis, E-38206 Tenerife - Spain
[4] UCL, Dept Phys & Astron, Gower St, London WC1E 6BT - England
[5] Inst Astrofis Canarias, Calle Via Lactea S-N, E-38205 Tenerife - Spain
[6] Univ Estadual Santa Cruz, Lab Astrofis Teor & Observac, BR-45650000 Ilheus, BA - Brazil
[7] Univ Fed Santa Maria, BR-97105900 Santa Maria, RS - Brazil
Número total de Afiliações: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Monthly Notices of the Royal Astronomical Society; v. 503, n. 2, p. 3065-3080, MAY 2021. |
| Citações Web of Science: | 0 |
| Resumo | |
By way of the projected phase space (PPS), we investigate the relation between galaxy properties and cluster environment in a subsample of groups from the Yang catalogue. The sample is split according to the Gaussianity of the velocity distribution in the group into Gaussian (G) and non-Gaussian (NG). Our sample is limited to massive clusters with M-200 >= 10(14) M-circle dot and 0.03 <= z <= 0.1. NG clusters are more massive, less concentrated and have an excess of faint (F) galaxies compared to G clusters. NG clusters show mixed distributions of galaxy properties in the PPS compared to the G case. Using the relation between infall time and locus on the PPS, we find that, on average, NG clusters accreted similar to 10(11) M-circle dot more stellar mass in the last similar to 5 Gyr than G clusters. The relation between galaxy properties and infall time is significantly different for galaxies in G and NG systems. The more mixed distribution in the PPS of NG clusters translates into shallower relations with infall time. F galaxies whose first crossing of the cluster virial radius happened 2-4 Gyr ago in NG clusters are older and more metal-rich than in G systems. All these results suggest that NG clusters experience a higher accretion of pre-processed galaxies, which characterizes G and NG clusters as different environments to study galaxy evolution. (AU) | |
| Processo FAPESP: | 14/11156-4 - O que determina o crescimento da massa estelar de galáxias elípticas? Intrínseco ou ambiente: a saga contínua |
| Beneficiário: | Reinaldo Ramos de Carvalho |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 18/02626-8 - Astrofísica de Raios-X: o histórico de enriquecimento químico de grupos e aglomerados de galáxias |
| Beneficiário: | Tatiana Ferraz Laganá |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |