Los funcionarios y sacerdotes del antiguo Egipto formaban una clase social muy jerarquizada en la que sus integrantes tenían múltiples y muy dispares funciones...
Discerning the location of the gamma-ray emission region in AGN blazars from multi-messenger and multi-spectral-range observations
Relativistic jets in AGN in general, and in blazars in particular, are the most energetic and among the most powerful astrophysical objects known so far. Their...
Discovery and characterization of a planetary mass companion to the nearby M dwarf VHS J125601.92–125723.9
Direct imaging of wide planetary mass companions provide a unique opportunity to fully characterize their spectroscopic and photometric properties. They share...
Discovery of Two Rare Highly-Magnetized B Stars in the APOGEE Survey
The Apache Point Observatory Galactic Evolution Experiment (APOGEE) - one of the Sloan Digital Sky Survey III programs -- is using near-infrared spectra of ~100...
Introducción a los aspectos a tener en cuenta en el diseño de la mecánica de instrumentación aeroespacial, con una breve descripción de las especificaciones...
Distances to galaxies from the brightest stars in the Universe
Measuring distances to galaxies and determining their chemical compositions are two fundamental activities in modern extragalactic astronomy, in that they help...
Distribution of the Wind from the Cool Giants in Symbiotic Binary Stars
In symbiotic stars, two different physical regimes of circumstellar material exist side by side. Around the donor red giant star, there is a cool and dense...
Diversidad quimica, diversidad genetica y diversidad sexual
La diversidad se ha convertido en una virtud indiscutible, contraria al ideal de la perfección uniforme. Partiendo del origen y la naturaleza de la diversidad...
Galaxies in different environments have different properties. In dense environments galaxies are more likely to be red, passive ellipticals than in less dense...