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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  • Image of the globular cluster M13, where second generation AGB stars have been identified for the first time. Image obtained with the IAC-80 Telescope, in the Teide Observatory (Tenerife). Credits: Daniel López/IAC.
    Press release
    Found: the lost generation of stars in globular clusters which stellar evolution models had predicted
    The specialized Journal The Astrophysical Journal Letters (ApJL) is publishing today, in its on-line version, a study led by the Institute of Astrophysics of the Canaries (IAC) in which the researchers have identified a type of giant stars (AGB which means Asymptotic Giant Branch) of the second generation, and rich in aluminium, in four globular clusters with a range of metallicities and ages in the Milky Way. The detection of these stars on the giant branch of the well known Hertzsprung-Russell (HR) diagram is what is expected according to theoretical models of stellar evolution, and
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  • Stacked GTC OSIRIS+ image of And XXXVI. And XXVI is clearly evident in-between two bright foreground stars. In the inset we show a negative colour zoom-in on And XXVI.
    Press release
    The Gran Telescopio Canarias has contributed to the discovery of one of the faintest dwarf galaxies orbiting Andromeda
    The Instituto de Astrofísica de Canarias (IAC) has contributed to the discovery of And XXXVI, a new ultra-faint dwarf galaxy situated in the vicinity of Andromeda (M31), the Milky Way’s large neighbouring galaxy. The discovery, which reveals one of the faintest satellite galaxies identified to date around Andromeda, was made possible by observations carried out with the Gran Telescopio Canarias (GTC) and the OSIRIS+ instrument. The results of the study are published in the journal Astronomy & Astrophysics. Ultra-faint dwarf galaxies are among the smallest and dimmest galaxies known. Formed
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