News
The early sequence of events that shaped the Milky Way
Among the myriad discoveries presented in the second data release of the Gaia mission, there was an enigmatic color-magnitude diagram (CMD) of Milky Way halo...
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NewsThe extreme CNO-enhanced composition of a primitive iron-poor dwarf starWe present an analysis of high-resolution Keck/HIRES spectroscopic observations of J0815+4729, an extremely carbon-enhanced, iron-poor dwarf star. These high...
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NewsThe helium enrichment in massive stars during the main sequence could be the result of mass accretionThere is increasing evidence that single-star evolutionary models are unable to reproduce all of the observational properties of massive stars. Binary...
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NewsThe impact of deep learning for the analysis of galaxy surveysThe amount and complexity of data delivered by modern galaxy surveys has been steadily increasing over the past years. New facilities will soon provide imaging...
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NewsThe impact of strong recombination on temperature determination in planetary nebulaeThe long-standing difference in chemical abundances determined from optical recombination lines and collisionally excited lines raises questions about our...
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NewsThe JWST view of the barred galaxy population in the SMACS0723 galaxy clusterThe cosmic evolution of the barred galaxy population provides key information about the secular evolution of galaxies and the settling of rotationally dominated...
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NewsThe magnetic and dynamic properties of an active region prominence inferred from spectropolarimetric observations in the He I D3 multipletUnderstanding the magnetic field in the corona is key for explaining the fascinating physical processes occurring there. However, the extreme conditions in the...
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NewsThe Metal-Poor Edge of the Milky Way’s Thin DiskThe 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...