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45 papers · 1 filter
A numerical study of Penrose-like inequalities in a family of axially symmetric initial data
J. L. Jaramillo, N. Vasset, M. Ansorg
Our current picture of black hole gravitational collapse relies on two assumptions: i) the resulting singularity is hidden behind an event horizon -- weak cosmic censorship conject…
Soliton solutions in relativistic field theories and gravitation
Joaquin Diaz-Alonso, Diego Rubiera-Garcia
We report on some recent results on a class of relativistic lagrangian field theories supporting non-topological soliton solutions and their applications in the contexts of Gravita…
The galaxy luminosity function of the Abell 496 cluster and its spatial variations
G. Boué, C. Adami, F. Durret +2
We investigate the LF in the very relaxed cluster Abell 496. Our analysis is based on deep images obtained at CFHT with MegaPrime/MegaCam in four bands (ugri) covering a 1x1 deg2 r…
Critical phenomena in gravitational collapse
Carsten Gundlach, Jose M. Martin-Garcia
As first discovered by Choptuik, the black hole threshold in the space of initial data for general relativity shows both surprising structure and surprising simplicity. Universalit…
Derivation of the postulates of quantum mechanics from the first principles of scale relativity
Laurent Nottale, Marie-Noëlle Célérier
Quantum mechanics is based on a series of postulates which lead to a very good description of the microphysical realm but which have, up to now, not been derived from first princip…
Observations of the Sagittarius Dwarf galaxy by the H.E.S.S. experiment and search for a Dark Matter signal
HESS Collaboration, F. Aharonian
Observations of the Sagittarius dwarf spheroidal (Sgr dSph) galaxy were carried out with the H.E.S.S. array of four imaging air Cherenkov telescopes in June 2006. A total of 11 hou…