News type: Research news

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    Are ultra-diffuse galaxies Milky Way-sized?
    Now almost 70 years since its introduction, the effective or half-light radius has become a very popular choice for characterising galaxy size. However, the...
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    Are ultra-diffuse galaxies structurally similar to low-surface-brightness galaxies?
    A central question regarding ultra-diffuse galaxies (UDGs) is whether they are in a separate category from low-surface-brightness (LSB) galaxies, or just their...
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    Asteroid reflectance spectra from Gaia DR3: Near-UV in primitive asteroids
    Asteroids are the remnants of the planetary formation in the Solar System and so, their study helps us to understand the conditions during the early stages of...
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    Astronomy, Architecture and Symbolism: the global project of Sneferu at Dahshur.
    The two pyramids built during the Old Kingdom by the Fourth Dynasty King Sneferu at Dahshur are usually considered as two consecutive projects, the second –...
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    Back to the Lithium Plateau with the [Fe/H] < -6 star J0023+0307
    We present an analysis of the UVES high-resolution spectroscopic observations at the 8.2m VLT of J0023+0307, an extremely iron-poor dwarf star. We are unable to...
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    Baryonic properties of nearby galaxies across the stellar-to-total dynamical mass relation
    Despite the fundamental role that dark matter halos play in our theoretical understanding of galaxy formation and evolution, the interplay between galaxies and...
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    Bayesian Analysis of Multiple Harmonic Oscillations in the Solar Corona.
    We present the first application of Bayesian model comparison techniques for solar atmospheric seismology. The detection of multiple mode harmonic kink...
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    Beyond the magnitude limit of the Hubble Deep Field
    Using the Surface Brightness Fluctuation technique (SBF), IAC researchers have succeeded in detecting galaxies beyond Hubble's photometric detection limit...
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    BIPOLAR NEBULAE.
    Se ha medido el gradiente de abundancia de Oxígeno en la galaxia M33 con muestras relativamente grandes de regiones HII y usando dos métodos diferentes: primero...