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.

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  • Press release
    Novedades sobre el cometa Lovejoy
    El cometa Lovejoy (C/2014 Q2), visible en el hemisferio Norte desde finales de diciembre, está ofreciendo sus momentos más espectaculares en estos días, pasando de una profunda hibernación a una frenética actividad, tal y como explica el astrónomo del IAC Miquel Serra Ricart en el artículo Lovejoy al "máximo" del Blog Vía Láctea s/n. Esta actividad se manifiesta tanto en la coma como en la cola del cometa. Además, disponemos de nuevas imágenes de Lovejoy, obtenidas en el Observatorio del Teide (OT) en Tenerife y que muestran el cielo nocturno sobre los distintos telescopios del observatorio
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  • The M31 Galaxy, more commonly known as the Andromeda Galaxy, is a spiral galaxy situated some 2- 2.5 million light years from us in the direction of the constellation of Andromeda. Credits: Adam Evans/wikipedia.
    News report
    A different story
    The discovery of metal-rich planetary nebulae in the outer regions of the Andromeda Galaxy, using data from the GTC, gives evidence of a possible encounter between galaxies
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  • Figure caption: Left : (FUV − NUV) versus (NUV − [3.6]) color-color diagram. Morphological types are represented by color (see legend). We define the blue and red sequence by dividing the plot into two regions and fitting a least-squares 1-D polynomial (a
    Research news
    The GALEX/S4G UV-IR color-color diagram: catching Spiral Galaxies away from the Blue Sequence.
    We obtained GALEX FUV, NUV, and Spitzer/IRAC 3.6 µm photometry for >2000 galaxies, available for 90% of the S4G sample. We find a very tight "GALEX Blue Sequence (GBS)" in the (FUV − NUV) versus (NUV − [3.6]) color-color diagram which is populated by irregular and spiral galaxies, and is mainly driven by changes in the formation timescale (τ ) and a degeneracy between τ and dust reddening. The tightness of the GBS provides an unprecedented way of identifying starforming galaxies and objects that are just evolving to (or from) what we call the "GALEX Green Valley (GGV)". At the red end of the
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