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Díaz García, Elena ; Rodriguez, A. ; Domínguez-Adame Acosta, Francisco ; Malyshev, Andrey | EDP Sciences | 2005-12Optical spectroscopy usually fails in detecting localization-delocalization (Anderson) transitions. We report on an anomalous behavior of the absorption spectrum in a one-dimensional lattice with long-range correlated diagonal disorder, having a[...]texto impreso
Montes Gutiérrez, David ; Castro Rubio, Elisa de ; Fernández Figueroa, María José ; Cornide Castro-Piñeiro, Manuel | EDP Sciences | 1995-12We present new spectroscopic observations in the Ca II H & K line region for a sample of 28 chromospherically active binary systems (RS CVn and BY Dra classes), with different activity levels. By using the spectral subtraction technique (subtrac[...]texto impreso
Alonso, O. ; Zamorano Calvo, Jaime ; Rego Fernández, Manuel ; Gallego Maestro, Jesús | EDP Sciences | 1995-10A full set of algorithms for the automatic analysis of low-resolution objective-prism spectra has been developed with the aim of finding new emission-line galaxies (ELGs) candidates from the Universidad Complutense de Madrid (UCM) survey prism p[...]texto impreso
The physical possibility of neutron fibres, proposed in a previous paper, is reviewed briefly. Further possibilities and results are reported specifically about : (a) magnetized fibres, (b) propagation modes in homogeneous circular fibres (upper[...]texto impreso
Antoranz Canales, Pedro ; Barrio Uña, Juan Abel ; Contreras González, José Luis ; Fonseca González, Mª Victoria ; Miranda Pantoja, José Miguel ; Scapin, Valeria | EDP Sciences | 2012-03We report on the detection of very-high energy (VHE, E > 100 GeV) gamma-ray emission from NGC 1275, the central radio galaxy of the Perseus cluster of galaxies. The source has been detected by the MAGIC telescopes with a statistical significanc[...]texto impreso
We present a study of the Earth's rotational motion in terms of the Earth Orientation Parameters (EOP) of the new paradigm that is recommended by the IAU 2000 resolutions to transform between the celestial and terrestrial reference systems. This[...]texto impreso
Gorgas García, Francisco Javier ; Cardiel López, Nicolás ; Pedraz, S. ; González, J. J. | EDP Sciences | 1999-10Empirical fitting functions, describing the behaviour of the ?4000 Å break, D_4000, in terms of effective temperature, metallicity and surface gravity, are presented. For this purpose, the break has been measured in 392 stars from the Lick/IDS L[...]texto impreso
In this paper, information theoretic methodology for system modeling is applied to investigate the probability density function of the busy period in M/G/1 vacation models operating under the N-, T- and D-policies. The information about the dens[...]texto impreso
Maieves, Helayne Aparecida ; Hoffmann Ribani, Rosemary ; Morales Gómez, Patricia ; Sánchez Mata, María de Cortes | EDP Sciences | 2015Native to Asia, Hovenia dulcis Thunb. (Rhamnaceae), known as Japanese grape, is also found in central and southern America, southern Europe and North Africa. The fruit is a small capsule, attached to peduncle or pseudofruit, which, when mature, [...]texto impreso
The total energy E(t) in a fluid of inelastic particles is dissipated through inelastic collisions. When such systems are prepared in a homogeneous initial state and evolve undriven, E(t) decays initially as t^(?2) ~ exp[?2?? ] (known as Haff's [...]texto impreso
Matallanas Peñas, Beatriz ; Ochando González, María Dolores ; Callejas Hervás, Carmen | EDP Sciences | 2016The white-clawed crayfish is endemic to western and southern Europe and its population has dramatically decreased in the last few decades. The latest reports on this species have shown that the genetic variability of Spanish populations displays[...]texto impreso
Ustamujic, S. ; Orlando, S. ; Bonito, R. ; Miceli, M. ; Gómez de Castro, Ana Inés ; López Santiago, J. | EDP Sciences | 2016Context. X-ray observations of protostellar jets show evidence of strong shocks heating the plasma up to temperatures of a few million degrees. In some cases, the shocked features appear to be stationary. They are interpreted as shock diamonds. [...]texto impreso
The purpose of this paper is to show how to solve in Hamiltonian formalism the equations of the polar motion of any arbitrarily shaped elastic celestial body, i.e. the motion of its rotation axis ( or angular momentum) with respect to its figure[...]texto impreso
Monte Carlo simulations of the spatially homogeneous Boltzmann equation for inelastic Maxwell molecules, performed by Baldassarri et al. (cond-mat/0111066), have shown that general classes of initial distributions evolve for large times into a s[...]texto impreso
Montes Gutiérrez, David ; Martín, E. L. ; Fernández Figueroa, María José ; Cornide Castro-Piñeiro, Manuel ; Castro Rubio, Elisa de | EDP Sciences | 1997-06In this work we present spectroscopic observations centered in the spectral lines most widely used as optical indicators of chromospheric activity (H?, H?, CaII H & K, and HeI D_3) in a sample of F, G, K and M chromospherically inactive stars. [...]
