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Jan 15 2020 Blue contours correspond to the neutral hygrogen ring, overlaid on an optical color composite image obtained at CFHT in g-, r- and i-band. Bait et al. report the discovery using the Giant Metrewave Radio Telescope of an extremely large (diameter approximately 115 kpc)...
Dec 6 2019 The large field-of-view Gaia observations of NGC 3201 allow us to measure the velocity dispersion in the outskirts of the cluster, which appears significantly higher (red dots in top right panel) than what expected from standard Newtonian dynamics (bottom right panel). This...
Nov 26 2019 Composite image by Jayanne English of the University of Manitoba, with NRAO VLA radio data from Silvia Carolina Mora-Partiarroyo and Marita Krause of the Max-Planck Institute for Radioastronomy. The observations are part of the project Continuum HAlos in Nearby Galaxies --...
Nov 18 2019 Left: temporal frieze (time flows to the right) showing the evolution of the ionization state of the Universe during the first billion years of the Universe. The box spans about 350 million light years on a side. The blue color indicates photo-ionized warm gas, the red shows warmer...
Oct 3 2019 History of the reionisation of the Universe in a cosmological simulation (top) and prediction with the artificial intelligence (bottom). Both maps show the ionization state of the hydrogen gas at different location in space as a function of the cosmological time (in billions of year...
Oct 10 2019 Oliver Müller, postdoctorant accueilli au sein de l'équipe GALHECOS depuis novembre 2018, a reçu le 10 octobre 2019 le prix KlarText dans le cadre de sa thèse de doctorat à l'université de Bâle pour son article de diffusion scientifique en allemand intitulé "Galaktisches...
Oct 5 2019 L'Observatoire astronomique de Strasbourg participe à la Fête de la Science 2019 : 5 et 6 octobre au Champ du Feu, avec des conférences samedi à 15h, Pierre-Alain Duc «Voyages intergalactiques» dimanche à 15h, Frédéric Marin «Exomondes et voyages...
Sep 21 2019 Le Jardin des Sciences coordonne les Journées européennes du Patrimoine 2019 à l'Université de Strasbourg les 21 et 22 septembre 2019. N'hésitez pas à consulter la plaquette du programme détaillé. Plusieurs activités sont proposées à l'Observatoire...
Jul 5 2019 The prize rewards Dominique Aubert and Pierre Ocvirk, from Strasbourg University, and their team, for their project "Galaxies and reionization simulations using hybrid computing". The software developed within this project is optimized to exploit new hybrid computing...
May 15 2019 The spiral system NGC 5371 is a very efficient star factory and contains almost no missing normal matter. © SDSS/Fraternali Large spiral galaxies, like our nearest neighbour the Andromeda Galaxy, leave almost no gas or dust particles unused when forming stars. Astronomers...