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Research, in which the Instituto de Astrofísica de Canarias has participated has analyzed object 2023 FY3, a member of a group of asteroids which have trajectories similar to that of the Earth. The available data suggest that it could collide with the Earth during the next hundred years, but its small size implies that it is not a major threat The study of the physical characteristics and the dynamical evolution of object 2023 FY3, in which the Instituto de Astrofísica de Canarias (IAC) and the Complutense University of Madrid (UCM) have participated, enhances our limited knowledge about the
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9 institutions from 7 European countries today signed the documents for this organization, which will prepare the way towards the future construction of the European Solar Telescope (EST) One of the main aims of the EST is to improve our understanding of the Sun by observing its magnetic fields in unprecedented detail Representatives from 8 institutions in 7 European countries, among which are the Consejo Superior de Investigaciones Científicas (CSIC) and the Instituto de Astrofísica de Canarias (IAC) this morning in Santa Cruz de Tenerife, signed the founding documents of the Canary
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H II regions are ionized nebulae associated with the formation of massive stars. They exhibit a wealth of emission lines in their spectra that form the basis for estimation of chemical composition. The amount of heavy chemical elements is essential to the understanding of important phenomena such as nucleosynthesis, star formation and chemical evolution of galaxies. For over 80 years, however, a discrepancy exists of a factor of around two between heavy-element abundances (the so-called metallicity) derived from the two main kinds of emission lines that can be measured in nebular spectra
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