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31 papers · 2 filters
Microlensing of a Biconical Broad Line Region
C. Abajas, E. Mediavilla, J. A. Munoz +2
The influence of microlensing in the profiles of the emission lines generated in a biconical geometry is discussed. Microlensing amplification in this anisotropic model is not dire…
Relaxation dark energy in non-critical string cosmologies and astrophysical data
Nikolaos E. Mavromatos, Vasiliki A. Mitsou
In this talk we review briefly the basic features of non-critical (dissipative) String Cosmologies, and we confront some of these models with supernova data. We pay particular atte…
Internal shocks in relativistic outflows: collisions of magnetized shells
Petar Mimica, Miguel-Angel Aloy, Ewald Mueller
(Abridged): We study the collision of magnetized irregularities (shells) in relativistic outflows in order to explain the origin of the generic phenomenology observed in the non-th…
Probing the internal solar magnetic field through g-modes
T. I. Rashba, V. B. Semikoz, S. Turck-Chieze +1
The observation of g-mode candidates by the SoHO mission opens the possibility of probing the internal structure of the solar radiative zone (RZ) and the solar core more directly t…
Multi-scale morphology of the galaxy distribution
Enn Saar, Vicent J. Martinez, Jean-Luc Starck +1
Many statistical methods have been proposed in the last years for analyzing the spatial distribution of galaxies. Very few of them, however, can handle properly the border effects…
Fundamental differences between SPH and grid methods
Oscar Agertz, Ben Moore, Joachim Stadel +17
We have carried out a hydrodynamical code comparison study of interacting multiphase fluids. The two commonly used techniques of grid and smoothed particle hydrodynamics (SPH) show…