Galactic superwinds present a filament-like structure, with strong X ray emissions, which could not be explained until now. Using hydrodynamic calculations, it has been possible to determine that this structure is caused by the autocollimation of the material that forms the galactic superwinds. The autocollimation is caused by the interaction of material escaping from stellar superclouds, compact groups of stars revealed by the HST in which intense stellar formation has given rise to at least 100 very massive and very luminous stars. This interaction also explains the X ray emission.
This section includes scientific and technological news from the IAC and its Observatories, as well as press releases on scientific and technological results, astronomical events, educational projects, outreach activities and institutional events.
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Observing the nucleus of a comet is difficult, because comets are normally active near the sun which means that their nuclei are hidden by their comae. 124P/Mrkos is a low-activity comet observed at 1.9 UA of the sun. The spectra of comets give us information not only about their composition, but also about the initial composition of the solar system. In this case the spectrum is very similar to that of the D- and P-type asteroids that typically populate the external part of the asteroid belt.
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Los investigadores ya han hecho su primer descubrimiento con este instrumento: un candidato a planeta extrasolar de la masa de Saturno
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Los políticos comprobarán la efectividad de la Ley del Cielo en Canarias, aprobada en 1988, que minimiza la contaminación lumínica
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La charla será ofrecida por el Prof. Joseph Silk,de la Universidad de Oxford
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Hoy jueves, 21 de noviembre, en el Instituto de Astrofísica de Canarias, se reúnen los miembros de la Red de la Organización Europea de Astronomía en el Norte
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