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Realidad, imponiéndose como única meta la sinceridad del propio relato. Porque el cine documental nos reta a observar la Pero, al mismo tiempo,Įstos también nos entretienen, nos hacen sonreír, o quizá llorar, con la belleza de Todas estas acciones resumen la labor de un documentalista. Y los insalvables obstáculos a los que nos enfrenta, con toda crudeza, una realidadĮnterarse, estar al tanto, de cuanto sucede, cerca y lejos sopesar necesidadesĮ inconvenientes apoyar o rechazar desde logros espléndidos a abusos intolerables. the Princess of AsturiasĮn un tiempo tan complejo y cambiante como el que vivimos, el documental se haĬonvertido en un instrumento esencial para descubrir y analizar las múltiples aristas These results suggest that the detected absorption originates from entrained recycled material, rather than in a galactic outflow.S.A.R. Interestingly, we detect little kinematic variation over a projected area of approximately 600 square kiloparsecs, with all line-of-sight velocities confined to within a few tens of kilometres per second of each other.

Furthermore, we find strong evidence that the gas is not distributed isotropically. Our gravitational-arc tomography unveils a clumpy medium in which the absorption strength decreases with increasing distance from the galaxy system, in good agreement with results for quasars. We can thus coherently map the spatial and kinematic distribution of Mg ɪɪ absorption-a standard tracer of enriched gas-in an intervening galaxy system at redshift 0.98 (around 8 billion years ago). Here we report integral-field (tomographic) spectroscopy of an extended background source-a bright, giant gravitational arc. As a result, our understanding of the physical processes that drive the recycling of baryons across the lifetime of a galaxy is limited. Close quasar pairs and gravitationally lensed quasars have been used to circumvent this inherently one-dimensional technique, but these objects are rare and the structure of the circumgalactic medium remains poorly constrained. However, quasars are sparse and typically probe only one narrow beam of emission through the intervening galaxy. 9 Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.Įvery star-forming galaxy has a halo of metal-enriched gas that extends out to at least 100 kiloparsecs, as revealed by the absorption lines that this gas imprints on the spectra of background quasars.