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The transient Swift J1727.8-162 is the latest member of the X-ray binary black hole family to be discovered. They are formed by a black hole and a low-mass star whose gas is stripped off and accreted to the black hole via an accretion disc. The high temperature of the accretion disc makes it shine in all energy bands up to X-rays, and is particularly bright during epochs known as outbursts. In this novel study, published just a few months after the discovery of the system, we present 20 epochs of optical spectroscopy obtained with the GTC-10.4m telescope. The spectra cover the main accretionAdvertised on
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An international study, carried out by the James Webb Space Telescope (JWST) in which the Instituto de Astrofísica de Canarias (IAC) has participated, shows that the universe could produce extremely luminous galaxies at very early epochs, when it was only some 3% of its present age. This result implies that these galaxies formed stars before, and more quickly than predicted by current theoretical models. The study also reveals an unusual galaxy that “imitates” the emission from a very distant galaxy. The results are published in the journal Nature. During the first months of scientificAdvertised on
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The technology which is used in astrophysics research is useful not only in space; many of the sophisticated techniques can be put to very good use in the field of medicine. On this basis in IACTEC there is a team of Medical Technology (TECMED) who develop combinations of the methods of Artificial Intelligence and Machine Learning used in astrophysics for the diagnosis of pathologies. To celebrate the International Day of Diabetes the team stresses the magnitude of the problema in the Islands. Some experts call diabetes one of the worst “silent pandemics”. Spain is the second country in theAdvertised on