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An international collaboration, with the participation of the Instituto de Astrofísica de Canarias (IAC), determines with an unprecedented level of precision the mass, age and rotation profile of the core of a massive pulsating star. Known as HD 192575, it has been observed by the NASA space telescope TESS continuously for more than a year. The results shed new light on how such stars are internally structured and how they evolve until their death, when they explode as supernovae and form neutron stars and black holes. The scientific team has also used observations made with the MercatorAdvertised on
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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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The meeting, which will take place on Friday 1 March at 18:00, is being held on the occasion of the International Day of Women and Girls in Science and International Women's Day. The Museum of Science and the Cosmos, associated with the Instituto de Astrofísica de Canarias (IAC), is hosting the Forum of Women Scientists and Technologists this Friday, with the aim of raising the profile of women in the STEM field and serving as a vocational inspiration for future generations. The event will consist of a round table discussion, which will take place in the Museum's assembly hall at 18:00 andAdvertised on