The XMM-Newton Serendipitous Survey. VI. The X-ray Luminosity Function (2008)
Ebrero, J., Carrera, F. J., Page, M. J., Silverman, J. D., Barcons, X., Ceballos, M. T., ...
We present the X-ray luminosity function of AGN in three energy bands (Soft: 0.5-2 keV, Hard: 2-10 keV and Ultrahard: 4.5-7.5 keV). We have used the XMS survey along with other highly complete...
Average Fe K-alpha emission from distant AGN (2008)
Corral, A., Page, M. J., Carrera, F. J., Barcons, X., Mateos, S., Ebrero, J., ...
One of the most important parameters in the XRB (X-ray background) synthesis models is the average efficiency of accretion onto SMBH (super-massive black holes). This can be inferred from the shape...
Mixing of rescaled data and Bayesian inference for earthquake recurrence times (2008)
The limits of a recently proposed universal scaling law for the probability distributions of earthquake recurrence times are explored. The scaling properties allow to improve the statistics of...
Mixing of rescaled data and Bayesian inference for earthquake recurrence times (2008)
The limits of a recently proposed universal scaling law for the probability distributions of earthquake recurrence times are explored. The scaling properties allow to improve the statistics of...
X-ray absorption in distant type II QSOs (2008)
Krumpe, M., Lamer, G., Corral, A., Schwope, A. D., Carrera, F. J., Barcons, X., ...
We present the results of the X-ray spectral analysis of an XMM-Newton-selected type II QSO sample with z>0.5 and 0.5-10 keV flux of 0.3-33 x 10^{-14} erg/s/cm^2. The distribution of absorbing column...
NGC3147: a "true" Seyfert 2 without the broad-line region (2007)
Bianchi, S., Corral, A., Panessa, F., Barcons, X., Matt, G., Bassani, L., ...
We report on simultaneous optical and X-ray observations of the Seyfert galaxy, NGC3147. The XMM-Newton spectrum shows that the source is unabsorbed in the X-rays ($N_H
Barcons, X., Carrera, F. J., Ceballos, M. T., Page, M. J., Bussons-Gordo, J., Corral, A., ...
We present the XMM-Newton Medium sensitivity Survey (XMS), including a total of 318 X-ray sources found among the serendipitous content of 25 XMM-Newton target fields. The XMS comprises four largely...
Garcet, O., Gandhi, P., Gosset, E., Sprimont, P. G., Surdej, J., Borkowski, V., ...
Our goal is to characterize AGN populations by comparing their X-ray and optical classifications. We present a sample of 99 spectroscopically identified X-ray point sources in the XMM-LSS survey...
The XMM-Newton serendipitous survey IV. The AXIS X-ray source counts and angular clustering (2007)
Carrera, F. J., Ebrero, J., Mateos, S., Ceballos, M. T., Corral, A., Barcons, X., ...
AXIS (An XMM-Newton International Survey) is a survey of 36 high Galactic latitude XMM-Newton observations covering 4.8 deg2 and containing 1433 serendipitous X-ray sources detected with 5-sigma...
INTEGRAL and XMM-Newton observations towards the unidentified MeV source GRO J1411-64 (2006)
Torres, D. F., Zhang, S., Reimer, O., Barcons, X., Corral, A., Bosch-Ramon, V., ...
Mixing of rescaled data and Bayesian inference for earthquake recurrence times (2005)
The limits of a recently proposed universal scaling law for the probability distributions of earthquake recurrence times are explored. The scaling properties allow to improve the statistics of...
Simultaneous X-Ray and optical spectroscopy of the Seyfert galaxy Mrk 993 (2004)
Corral, A., Barcons, X., Carrera, F. J., Ceballos, M. T., Mateos, S.
We present the results of simultaneous XMM-Newton X-ray and 3.5m/CAHA optical spectroscopic observations of the Seyfert galaxy Mrk 993. This galaxy exhibited in the past significant variations of its...
J. F. Bienvenido, L. Iribarne, R. Guirado, A. Becerra, F. Rodrguez, R. Ayala, ...
In order to simulate specific greenhouse structures in a general way, DAMOCIA-SIM uses "greenhouse definitions" and "experiment definitions". It incorporates modern IT techniques and tools, with...
Enhanced neurofibrillary degeneration in transgenic mice expressing mutant tau and APP (2001)
Lewis, J., Dickson, D.W., Chisholm, L., Corral, A., Jones, G., ...
JNPL3 transgenic mice expressing a mutant tau protein, which develop neurofibrillary tangles and progressive motor disturbance, were crossed with Tg2576 transgenic mice expressing mutant beta...
Algorithms for Joining R-trees and Linear Region Quadtrees (1999)
A. Corral, M. Vassilakopoulos, Y. Manolopoulos
The family of R-trees is suitable for storing various kinds of multidimensional objects and is considered an excellent choice for indexing a spatial database. Region Quadtrees are suitable for...
Synchronization of Short-Range Pulse-Coupled Oscillators (1998)
We explore systems of pulse-coupled oscillators beyond the mean-field limit [R.E. Mirollo and S.H. Strogatz, {SIAM J. Appl. Math.} {\bf 50}, 1645 (1990)] by means of a manageable description which...
Stability of Spatio-Temporal Structures in a Lattice Model of Pulse-Coupled Oscillators (1996)
Diaz-Guilera, A., Arenas, Alex, Corral, A., Perez, C. J.
We analyze the collective behavior of a lattice model of pulse-coupled oscillators. By studying the intrinsic dynamics of each member of the population and their mutual interactions we observe the...
Pérez, C. J., Corral, A., Díaz-Guilera, A., Christensen, K., Arenas, A.
Lattice models of coupled dynamical systems lead to a variety of complex behaviors. Between the individual motion of independent units and the collective behavior of members of a population evolving...
Corral, A., Perez, C. J., Diaz-Guilera, A., Arenas, A.
We introduce two coupled map lattice models with nonconservative interactions and a continuous nonlinear driving. Depending on both the degree of conservation and the convexity of the driving we find...