482 citations
- Valongo ObservatoryBR70 papers
- Universidade Federal do Rio Grande do NorteBR12 papers
- European Southern ObservatoryCL10 papers
- Instituto Nacional de Pesquisas EspaciaisBR10 papers
- Instituto de Astrofísica de CanariasES8 papers
- Centro Brasileiro de Pesquisas FísicasBR7 papers
- Observatoire de la Côte d’AzurFR7 papers
- Thüringer Landessternwarte TautenburgDE7 papers
- Universidade de São PauloBR7 papers
- Kitt Peak National ObservatoryUS6 papers
- California Institute of TechnologyUS5 papers
- Cerro Tololo Inter-American ObservatoryCL5 papers
Showing astro-ph.COShow all
3 papers · 1 filter
astro-ph.CO2009
The luminosity function of galaxies in elliptical-dominated galaxy groups: clues on the nature of fossil groups
Raimundo Lopes de Oliveira, Claudia Mendes de Oliveira, Renato Dupke +2
We have started a study of luminosity functions of Fossil Group candidates in order to characterize the faint-end of their galaxy distribution. Here we report on results of nine of…
astro-ph.CO2009★ 82 cited
A generalized equation of state for dark energy
E. M. Barboza, J. S. Alcaniz, Zong-Hong Zhu +1
A generalized parameterization for the dark energy equation of state (EoS) is proposed and some of its cosmological consequences are investigated. We show that in the limi…
astro-ph.CO2009★ 13 cited
Current lookback time-redshift bounds on dark energy
M. A. Dantas, J. S. Alcaniz, N. Pires
We investigate observational constraints on dark energy models from lookback time (LT) estimates of 32 old passive galaxies distributed over the redshift interval $0.11 \leq z \leq…