77 citations · 406 across the 39 of their papers we have counts for
9 papers · 1 filter
The cosmological lithium problem
Oswaldo D. Miranda
The discrepancy between the predictions of primordial nucleosynthesis and the observed lithium abundance in Spite plateau stars has been attributed either to a challenge to the sta…
Potential contributions of Pop III and intermediate-mass Pop II stars to cosmic chemical enrichment
Lia C. Corazza, Oswaldo D. Miranda, Carlos A. Wuensche
We propose a semi-analytic model that is developed to understand the cosmological evolution of the mean metallicity in the Universe. In particular, we study the contributions of Po…
Stochastic backgrounds of gravitational waves from cosmological sources - The role of dark energy
Oswaldo D. Miranda
[Abridged] We investigate the detectability of the gravitational stochastic background produced by cosmological sources in scenarios of structure formation. The model considers the…
Supermassive Black Holes: Connecting the Growth to the Cosmic Star Formation Rate
Eduardo S. Pereira, Oswaldo D. Miranda
In this Letter, we present a model connecting the cosmic star formation rate (CSFR) to the growth of supermassive black holes. Considering that the evolution of the massive black h…
Massive Black Hole Binary Systems in Hierarchical Scenario of Structure Formation
Eduardo S. Pereira, Oswaldo D. Miranda
The hierarchical scenario of structure formation describes how objects like galaxies and galaxy clusters are formed by mergers of small objects. In this scenario, mergers of galaxi…
Observational Constraints on Visser's Cosmological Model
Marcio E. S. Alves, Fabio C. Carvalho, Jose C. N. de Araujo +3
Theories of gravity for which gravitons can be treated as massive particles have presently been studied as realistic modifications of General Relativity, and can be tested with cos…