The first image of a new gaseous component in a planetary nebula.
False color image of the planetary nebula NGC 6778. In blue, the emission associated with weak lines of ion O++ recombination, taken with the OSIRIS tunable filter blue instrument in the GTC. In green, emission of the same ion in the excited lines by coll
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Jorge García Rojas: jogarcia_ext [at] iac.es (jogarcia_ext[at]iac[dot]es)
Measuring galaxy sizes is essential for understanding how they were formed and evolved across time. However, traditional methods based on l ight concentration or isophotal densities often lack a clear physical meaning. A recent study from Trujillo+20 explores a more physically motivated definition: the radius R 1, where the stellar surface density falls to 1 solar masses per parsec square —roughly the threshold for gas to form stars in galaxies like the Milky Way. In this work, Arjona-Gálvez+25 uses over 1,000 galaxies from several state-of-the-art cosmological simulations (AURIGA, HESTIA
A crucial step forward has been taken in the development of the European Solar Telescope (EST). The preliminary design of three core software systems— the Control System, the Adaptive Optics Real-Time Controller (AO RTC), and the Data Centre — has passed a rigorous international review, confirming their readiness to move into the next phase of development. In early July, the EST software engineering team submitted a detailed set of design documentation for evaluation as part of the Software Preliminary Design Review (SPDR), focusing on the telescope’s Control System, including Adaptive
El proyecto educativo “CosmoLab: del aula al Sistema Solar”, desarrollado por el Instituto de Astrofísica de Canarias (IAC) y financiado principalmente por el Cabildo de Tenerife, anuncia la apertura de matrícula del nuevo curso “CosmoViaje 2.0: lo que sabemos e ignoramos del Universo” en colaboración con la Consejería de Educación del Gobierno de Canarias. Esta iniciativa busca acercar la astronomía a toda la comunidad educativa de Tenerife y fomentar el conocimiento y disfrute de los excepcionales cielos y observatorios de Canarias. CosmoLab persigue promover la cultura científica en el
