News
The Metal-Poor Edge of the Milky Way’s Thin Disk
The formation and evolution of the disk of our Galaxy, the Milky Way, remains an enigma in astronomy. In particular, the relationship between the thick disk and...
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NewsThe nature of an extreme B supergiant in Cygnus2MASS J20395358+4222505 is an obscured early B supergiant near the massive OB star association Cyg OB2. Despite its bright infrared magnitude (Ks= 5.82) it has...
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NewsThe origin of the brightest stars in any Galaxy lies in stellar mergersMassive stars, those over ten times heavier than our Sun, are the conduits of most elements of the periodic table and drive the morphological and chemical...
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NewsThe phosphorus that came from the starsAll chemical elements in the Universe (except for H and most of the He) have been made in stellar interiors. But among those elements, the ones that allowed to...
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NewsThe relic galaxy NGC 1277 lacks dark matterThe standard cosmological model states that massive galaxies contain a large fraction of dark matter. Dark matter is a transparent substance that does not...
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NewsThe role of active galactic nucleus feedback on the evolution of dwarf galaxies from cosmological simulations: Supermassive black holes suppress star formation in low-mass galaxiesRecent observational studies suggest that feedback from active galactic nuclei (AGNs)—the energetic centres powered by supermassive black holes—may play an...
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NewsThe role of the Sagittarius dwarf galaxy in the evolution of our GalaxyThe European Space Agency's Gaia mission is revolutionising our understanding on how the Milky Way, the spiral galaxy we inhabit, has formed and evolved. Gaia...
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NewsThe slow expansion of dark matter halos from cusp to core naturally produces extended stellar core-like distributionsOnly a handful of observations truly constrain the nature of dark matter, which is why dozens of different physical models are still viable. Several of the most...
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NewsThe star formation rate evolution of low-mass galaxies as seen by OTELOWe present the analysis of a sample of Halpha, Hbeta and [OII] emission line galaxies from the OTELO survey, with masses typically below log(M */Msun) = 9.4 and...