Search results for "raga"
showing 10 items of 1852 documents
THE ALHAMBRA SURVEY: EVOLUTION OF GALAXY SPECTRAL SEGREGATION
2016
arXiv:1601.03668v1
Euclid preparation: XI. Mean redshift determination from galaxy redshift probabilities for cosmic shear tomography
2021
Ilbert, O., et al. (Euclid Collaboration)
Measuring galaxy segregation with the mark connection function
2010
(abridged) The clustering properties of galaxies belonging to different luminosity ranges or having different morphological types are different. These characteristics or `marks' permit to understand the galaxy catalogs that carry all this information as realizations of marked point processes. Many attempts have been presented to quantify the dependence of the clustering of galaxies on their inner properties. The present paper summarizes methods on spatial marked statistics used in cosmology to disentangle luminosity, colour or morphological segregation and introduces a new one in this context, the mark connection function. The methods used here are the partial correlation functions, includi…
A photometric study of Be stars located in the seismology fields of COROT
2007
Context: In preparation for the COROT mission, an exhaustive photometric study of Be stars located in the seismology fields of the COROT mission has been performed. The very precise and long-time-spanned photometric observations gathered by the COROT satellite will give important clues of the origin of the Be phenomenon. Aims: The aim of this work is to find short-period variable Be stars located in the seismology fields of COROT and to study and characterise their pulsational properties. Methods: Light curves obtained at the Observatorio de Sierra Nevada together with data from Hipparcos and ASAS-3 of a total of 84 Be stars have been analysed in order to search for short-term variations. W…
Un códice desconocido del Doctrinal de los cavalleros de Alfonso de Cartagena
2011
Se describe el manuscrito del Doctrinal de los cavalleros de Alfonso de Cartagena conservado en el Archivo Nacional de Praga, desconocido hasta el momento por editores y estudiosos de la obra del humanista, pese a haber sido ya identficado correctamente en 1984. De entre los 17 manuscritos del siglo siglo XV, más dos del siglo XVI y dos incunables, que constituyen la trasmisión manuscrita e impresa de la obra, el manuscrito descrito es uno de los más relevantes, por razones artísticas y filológicas. No sólo su factura es bellísima, realizada sobre pergamino y con iluminaciones, sino que ofrece lecturas convincentes para solucionar algún pasaje difícil. Se incluyen fotografías del manuscrito.