1.2k citations
- Valongo ObservatoryBR498 papers
- Centre National de la Recherche ScientifiqueFR204 papers
- Instituto de Astrofísica de CanariasES175 papers
- Laboratório Interinstitucional de e-AstronomiaBR161 papers
- Universidad de La LagunaES153 papers
- University of MichiganUS151 papers
- Universidade de São PauloBR145 papers
- Sorbonne UniversitéFR142 papers
- The Ohio State UniversityUS120 papers
- University College LondonGB114 papers
- Fermi National Accelerator LaboratoryUS110 papers
- Kavli Institute for Particle Astrophysics and CosmologyUS108 papers
Showing 2009 · astro-ph.COShow all
3 papers · 2 filters
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…