News
Neural networks to distinguish real and simulated galaxies
Can neural networks distinguish computer simulated galaxy images from observed galaxies? This is the question that has been addressed in this work. For years...
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NewsNew findings in spiral galaxies challenge the dark matter hypothesisDark matter is a type of material which has not been observed through any telescope, but whose existence is deduced from its gravitational effects on visible...
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NewsNew insights into the puzzle of strong CO absorptions in massive early-type galaxiesPuzzling properties of massive early-type galaxies (ETGs) emerge when studying their spectra at near-infrared (NIR) wavelengths. Massive ETGs show strong CO...
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NewsNew theoretical models explain the origin of oxygen in low-mass planetary nebulaeRecently, Delgado-Inglada and collaborators have shown that low-mass (between one and three times the mass of the Sun) planetary nebulae are rich in oxygen, but...
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NewsNGC1277: a massive compact relic galaxy in the nearby Universe.As early as 10 Gyr ago, galaxies with more than 10 ^11 M_sun in stars already existed. While most of these massive galaxies must have subsequently transformed...
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NewsNightside condensation of iron in an ultrahot giant exoplanetUltrahot giant exoplanets receive thousands of times Earth’s insolation. Their high-temperature atmospheres (greater than 2,000 kelvin) are ideal laboratories...
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NewsNo surviving evolved companions of the progenitor of SN1006.Type-Ia supernovae are thought to occur when a white dwarf made of carbon and oxygen accretes sufficient mass to trigger a thermonuclear explosion. The...
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NewsNon-detection of magnetic fields in the central stars of the planetary nebulae NGC 1360 and LSS 1362.A large fraction of planetary nebulae (about 80%) are bipolar or elliptical rather than spherically symmetric. Modern theories invoke magnetic fields, among...
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NewsNon-grey dimming events of KIC 8462852 from GTC spectrophotometryWe report ground-based spectrophotometry of KIC 8462852, during its first dimming events since the end of the Kepler mission. The dimmings show a clear colour...