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 detect iron lines in the spectrum but derive [Fe/H]< −6.1 from the Ca II resonance lines assuming [Ca/Fe]=0.40. The chemical abundance pattern of J0023+0307, with very low [Fe/Mg] and [Ca/Mg] abundance ratios, but relatively high absolute Mg and Si abundances, suggests J0023+0307 is a second generation star formed from a molecular cloud polluted by only one supernova in which the fall-back mechanism played a role. We measure a carbon
This section includes scientific and technological news from the IAC and its Observatories, as well as press releases on scientific and technological results, astronomical events, educational projects, outreach activities and institutional events.
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200 nights of observation were needed, from both northern and southern hemispheres, to complete the biggest panorama of our Galaxy, the Milky Way. This IAC project, funded by the FECYT, has obtained the biggest panoramic image ever taken of our Galaxy without the use of professional telescopes.
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The exhibition "100 Square Moons" is inaugurated in Brussels, together with a model of the European Solar Telescope. For a week the European Parliament in Brussels will be home to this educational display by the Instituto de Astrofísica de Canarias (IAC), while at the same time another copy of the exhibition is being shown in Japan.
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The Cervantes Institute in Japan plays host to this educational exhibition which brings advances in Astrophysics to society via photographs with major impact taken with the STC Astrograph of the Unit of Science Communication and Culture (UC3) of the Instituto de Astrofísica de Canarias (IAC) This exhibition also is part of the activities organized to celebrate the centenary of the birth of the International Astronomical Union, the biggest forum in the world for Astronomy.
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Desde la cumbre de Tenerife hasta el país del Sol naciente pasando por la capital administrativa de la Unión Europea. La exposición “100 Lunas cuadradas”, compuesta de nueve espectaculares imágenes del cielo, viaja durante el mes de abril a Tokio, donde se inaugurará el próximo día 5 en la sede del Instituto Cervantes en Japón para luego trasladarse a la Universidad Femenina de Ochanomizu. También podrá visitarse en la sede del Parlamento Europeo en Bruselas, acompañada de la maqueta del European Solar Telescope (EST), el que será el mayor telescopio solar de Europa; será inaugurada el
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A new project from the Instituto de Astrofísica de Canarias (IAC) has been chosed to be carried out in the Science Lab in the seventh edition of the Global Azure Bootcamp. This annual event occurs simultaneously in over 100 countries, and brings together professionals and experts in Internet technology, and in the Microsoft Cloud.
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