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212 papers · 1 filter
Minimal Inflation
Luis Alvarez-Gaume, Cesar Gomez, Raul Jimenez
Using the universal X superfield that measures in the UV the violation of conformal invariance we build up a model of multifield inflation. The underlying dynamics is the one contr…
Simulated vs. observed UV emission at high redshift: a hint for a clumpy ISM?
J. E. Forero-Romero, G. Yepes, S. Gottloeber +4
We discuss the rest-frame UV emission between 5< z < 7 from the MareNostrum High-z Universe, a SPH simulation done with more than 2 billion particles. Cosmological simulations of g…
PopStar Evolutionary Synthesis Models II: Optical emission-line spectra from Giant H{\sc ii} regions
M. L. Martín-Manjón, M. L. García-Vargas, M. Mollá +1
This is the second paper of a series reporting the results from the PopStar evolutionary synthesis models. Here we present synthetic emission line spectra of H{\sc ii} regions phot…
Lack of uniqueness for weak solutions of the incompressible porous media equation
Diego Cordoba, Daniel Faraco, Francisco Gancedo
In this work we consider weak solutions of the incompressible 2-D porous media equation. By using the approach of De Lellis-Székelyhidi we prove non-uniqueness for solutions in $L^…
Haro15: Is it actually a low metallicity galaxy?
V. Firpo, G. Bosch, G. Hagele +2
We present a detailed study of the physical properties of the nebular material in multiple knots of the blue compact dwarf galaxy Haro 15. Using long slit and echelle spectroscopy,…
Some open questions concerning biological growth
Carlos Escudero
We briefly review the properties of radially growing interfaces and their connection to biological growth. We focus on simplified models which result from the abstraction of only c…