News

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.

  • Artist’s impression of the hypergiant star HR 8752 traversing the Yellow Evolutionary Void (YEV). The image shows the increase in temperature undergone by the surface of the star in recent decades.. /© A.Lobel-ROB. SRON.
    Context. We study the time history of the yellow hypergiant HR 8752 based on high-resolution spectra (1973-2005), the observed MK spectral classification data, B - V- and V-observations (1918-1996) and yet earlier V-observations (1840-1918). Aims: Our local thermal equilibrium analysis of the spectra yields accurate values of the effective temperature (T eff), the acceleration of gravity (g), and the turbulent velocity (v t) for 26 spectra. The standard deviations average are 82 K for T eff, 0.23 for log g, and 1.1 km s -1 for v t. Methods: A comparison of B - V observations, MK spectral
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  • OCAM 2 cuadriplica la resolución y multiplica por tres la velocidad de instrumentos similares. Con este dispositivo, que se unirá al sistema óptico adaptativo del GTC, el mayor telescopio del mundo podrá vencer las turbulencias de la atmósfera terrestre y obtener imágenes con una nitidez similar a la del telescopio espacial Hubble.
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  • Las grandes transformaciones que experimentan las galaxias en su interior marcarán el futuro de las investigaciones sobre su evolución. Este candente campo de investigación ha centrado la XXIII edición de la 'Canary Islands Winter School of Astrophysics', organizada por el IAC. Dos semanas de charlas y debates que concluyen hoy en el Puerto de la Cruz (Tenerife).
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  • CANARY ISLANDS WINTER SCHOOLS OF ASTROPHYSICS Video: interview Daniela Calzetti Conference "Astronomía desde el espacio: 20 años de descubrimientos" por Daniela | Calzetti, Universidad de Massachus etts Others (in preparation) See also: Talks Videos Winter School 2011  
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