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.

  • Lightcurve of the host star of the planet TrES-1, where the transit was obeserved.
    A planet the size of Jupiter (TrES-1) has been detected from its transits around a star K0 V. (Data: M=0.75 ± 0.07 MJ R= 1.08 (+0.18,-0.04) RJ ). This is the first planet discovered using the transit technique with a small telescope. It is currently the second best-known extrasolar planet, and one of two from which direct thermal emission (light emitted by the planet) has been detected.
    Advertised on
  • Center-to-limb variation of the Q/I scattering amplitudes of the photospheric line of Sr I at 4607 Angstroms. The symbols correspond to various observations taken during a minimum and a maximum of the solar activity cycle. The colored lines show scatterin
    An investigation carried out at the IAC has demonstrated that the apparently non-magnetic regions of the solar photosphere (the innermost region of the atmosphere of the Sun) are instead permeated by a "chaotic" magnetic field of very significant intensity, which implies the presence of a vast amount of "hidden" magnetic energy in the quiet solar photosphere. This investigation required to develop first a novel diagnostic technique of magnetic fields, which is based on three-dimensional numerical simulations of the Hanle effect in atomic and molecular lines. For more information see the
    Advertised on
  • Windspeed readings taken by satellite at a height of 200 mbar (some 12 km), which have been proposed as an indicator of the observation quality of a site, give excellent results (speed, homogeneity) for our observatories. This confirms the quality of the ORM and OT for Adaptive Optics (OA). The figures are given beneath the photograph.
    Advertised on
  • Este proyecto educativo, coordinado y gestionado desde el IAC y subvencionado por el Ministerio de Ciencia y Tecnología pretende ayudar al profesorado de la ESO (Enseñanza Secundaria Obligatoria) y Bachillerato en el desarrollo de contenidos curriculares que puedan tratarse desde el ámbito de la Astronomía proporcionando, a su vez, un enfoque científico-cultural-humano de los mismos.
    Advertised on