853 citations
- Industrial University of SantanderCO23 papers
- Central University of VenezuelaVE22 papers
- The Abdus Salam International Centre for Theoretical Physics (ICTP)IT21 papers
- Universidad de Los AndesCO21 papers
- Universidad Nacional Autónoma de MéxicoMX17 papers
- Universidad de CaraboboVE13 papers
- Universidade do Estado do Rio de JaneiroBR13 papers
- Jožef Stefan InstituteSI11 papers
- Bariloche Atomic CentreAR9 papers
- Universidad de SalamancaES8 papers
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9 papers · 1 filter
The 3-dimensional Einstein-Klein-Gordon system in characteristic numerical relativity
W. Barreto, A. Da Silva, R. Gomez +3
We incorporate a massless scalar field into a 3-dimensional code for the characteristic evolution of the gravitational field. The extended 3-dimensional code for the Einstein--Klei…
The CIDA Variability Survey of Orion OB1. I: the low-mass population of Ori OB 1a and 1b
Cesar Briceno, Nuria Calvet, Jesus Hernandez +4
We present results of a large scale, multi-epoch optical survey of the Ori OB1 association, carried out with the QuEST camera at the Venezuela National Astronomical Observatory. We…
A source of a quasi--spherical space--time: The case for the M--Q solution
L. Herrera, W. Barreto, J. L. Herenández Pastora
We present a physically reasonable source for an static, axially--symmetric solution to the Einstein equations. Arguments are provided, supporting our belief that the exterior spac…
Herbig Ae/Be Stars in nearby OB associations
Jesus Hernandez, Nuria Calvet, Lee Hartmann +4
We have carried out a study of the early type stars in nearby OB associations spanning an age range of 3 to 16 Myr, with the aim of determining the fraction of stars which b…
On the general structure of Ricci collineations for type B warped spacetimes
J. L. Flores, Y. Parra, U. Percoco
A complete study of the structure of Ricci collineations for type B warped spacetimes is carried out. This study can be used as a method to obtain these symetries in such spacetime…
Topological mass in seven dimensions and dualities in four dimensions
M. Betancourt, A. Khoudeir
The massive topologically and self dual theories en seven dimensions are considered. The local duality between these theories is established and the dimensional reduction lead to t…