Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Cuesta, Herman J. Mosquera"'
Publikováno v:
Phys. Rev. D 95, 025011 (2017)
Huge electromagnetic fields are known to be present during the late stages of the dynamics of supernovae. Thus, when dealing with electrodynamics in this context, the possibility may arise to probe nonlinear theories (generalizations of the Maxwellia
Externí odkaz:
http://arxiv.org/abs/1701.00431
Publikováno v:
Hadronic Journal 34, 149-159 (2011)
It is well known that the concept of black hole has been considered very fascinating by scientists even before the introduction of Einstein's general relativity. They should be the final result of an irreversible gravitational collapse of very massiv
Externí odkaz:
http://arxiv.org/abs/1105.3394
Autor:
Cuesta, Herman J. Mosquera
A few observational and/or experimental results have dramatically pushed forward the research program on gravity as those from the radio-metric Doppler tracking received from the Pioneer 10 and 11 spacecrafts when the space vehicles were at heliocent
Externí odkaz:
http://arxiv.org/abs/1105.2832
Publikováno v:
Astropart. Phys. 35, 362-370 (2012)
We show that in the framework of R^{2} gravity and in the linearized approach it is possible to obtain spherically symmetric stationary states that can be used as a model for galaxies. The model can also help to have a better understanding on the the
Externí odkaz:
http://arxiv.org/abs/1105.0147
Publikováno v:
Astropart.Phys.34:587-590,2011
We discuss another approach regarding the inflation from the R^2 theory of gravity originally proposed by Starobinski. A non-singular early cosmology is proposed, where, adding a nonlinear electrodynamics Lagrangian to the high-order action, a bounci
Externí odkaz:
http://arxiv.org/abs/1011.4801
Publikováno v:
Phys.Rev.D80:023013,2009
The amplification of the primordial magnetic fields and the gravitational baryogenesis, a mechanism that allows to generate the baryon asymmetry in the Universe by means of the coupling between the Ricci scalar curvature and the baryon current, are r
Externí odkaz:
http://arxiv.org/abs/0907.3678
Publikováno v:
Mod.Phys.Lett.A25:2423-2429,2010
We propose a way to remove black hole singularities by using a particular nonlinear electrodynamics Lagrangian that has been recently used in various astrophysics and cosmological frameworks. In particular, we adapt the cosmological analysis discusse
Externí odkaz:
http://arxiv.org/abs/0905.3298
Publikováno v:
Europhys.Lett.86:20004,2009
It is shown that a weak modification of general relativity, in the linearized approach, renders a spherically symmetric and stationary model of the universe. This is due to the presence of a third mode of polarization in the linearized gravity in whi
Externí odkaz:
http://arxiv.org/abs/0903.3645
Neutrino mass spectrum from gravitational waves generated by double neutrino spin-flip in supernovae
The supernova (SN) neutronization phase produces mainly electron ($\nu_e$) neutrinos, the oscillations of which must take place within a few mean-free-paths of their resonance surface located nearby their neutrinosphere. The state-of-the-art on the S
Externí odkaz:
http://arxiv.org/abs/0809.0526
Publikováno v:
JCAP 0811:006,2008
Determination of pulsar parallaxes and proper motions addresses fundamental astrophysical open issues. Here, the ATNF Catalog is scrutinized searching for pulsar distances and proper motions. For a sample of 212 run away pulsars (RAPs), which current
Externí odkaz:
http://arxiv.org/abs/0711.3046