304 citations
- Universidade de São PauloBR71 papers
- Universidade Estadual Paulista (Unesp)BR41 papers
- Centro Brasileiro de Pesquisas FísicasBR30 papers
- Universidade Federal do Rio de JaneiroBR20 papers
- Instituto Nacional de Pesquisas EspaciaisBR18 papers
- Universidade Federal do ABCBR17 papers
- Centre National de la Recherche ScientifiqueFR16 papers
- Laboratório Nacional de AstrofísicaBR14 papers
- Valongo ObservatoryBR14 papers
- Tufts UniversityUS13 papers
- Instituto de Astrofísica de CanariasES12 papers
- Centro de Investigaciones Energéticas, Medioambientales y TecnológicasES11 papers
38 papers · 1 filter
The evolution of the Oxygen abundance radial gradient in the Milky Way Galaxy disk
M. Mollá, O. Cavichia, R. D. D Costa +3
We review the state of our chemical evolution models for spiral and low mass galaxies. We analyze the consequences of using different stellar yields, infall rate laws and star form…
Highly dynamically evolved intermediate-age open clusters
Andrés E. Piatti, Wilton S. Dias, Laura M. Sampedro
We present a comprehensive UBVRI and Washington CT1T2 photometric analysis of seven catalogued open clusters, namely: Ruprecht 3, 9, 37, 74, 150, ESO 324-15 and 436-2. The multi-ba…
Imaging the elusive H-poor gas in planetary nebulae with large abundance discrepancy factors
J. García-Rojas, R. L. M. Corradi, H. M. J. Boffin +5
The discrepancy between abundances computed using optical recombination lines (ORLs) and collisionally excited lines (CELs) is a major, unresolved problem with significant implicat…
Controlled opacity in a class of nonlinear dielectric media
Eduardo Bittencourt, Guilherme Camargo, Vitorio A. De Lorenci +1
Motivated by new technologies for designing and tailoring metamaterials, we seek properties for certain classes of nonlinear optical materials that allow room for a reversibly cont…
An alternative construction for the Type-II defect matrix for sshG
A. R. Aguirre, J. F. Gomes, A. L. Retore +2
In this paper we construct a Type-II defect (super) matrix for the supersymmetric sinh-Gordon model as a product of two Type-I defect (super) matrices. We also show that the result…
A Matrix Method for Quasinormal Modes: Schwarzschild Black Holes in Asymptotically Flat and (Anti-) de Sitter Spacetimes
Kai Lin, Wei-Liang Qian
In this work, we study the quasinormal modes of Schwarzschild and Schwarzschild (Anti-) de Sitter black holes by a matrix method. The proposed method involves discretizing the mast…