News

This section includes scientific and technological news from the IAC and its Observatories, as well as press releases on scientific and technological results, astronomical events, educational projects, outreach activities and institutional events.

  • Star formation density as a function of log(z+ 1).  Our results are the black dots and only for low-mass galaxies. Blue circles are data from the literature for high-mass galaxies.

    We present the analysis of a sample of Halpha, Hbeta and [OII] emission line galaxies from the OTELO survey, with masses typically below log(M*/Msun) = 9.4 and redshifts between 0.4<z<1.43. We study the star formation rate, star formation rate density, and number density and their evolution with redshift. We obtain a robust estimate of the specific star formation rate - stellar mass relation based on the lowest mass sample published so far. We also determine a flat trend of the star formation rate density and number density with redshift. Our results suggest a scenario of no evolution of the

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  • AEACI 2021 tutors and collaborators

    Under the title "Our home in the cosmic ocean", the seventh edition of the international summer course "Astronomy Education Adventure in the Canary Islands" has had 136 participants from 30 countries who have been trained in the latest discoveries about the Solar System and in the techniques and tools they can use to investigate it with their students. Several of the lectures from the course, given by researchers and science communicators, have just been published on the IAC's YouTube channel. For the seventh consecutive year, the Instituto de Astrofísica de Canarias (IAC) and NUCLIO, in

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  • Artist’s impression of the L 98-59 planetary system. Credit: ESO/M. Kornmesser

    An international team of astronomers, in which the Instituto de Astrofísica de Canarias (IAC) has participated, has found an exoplanetary system formed by several planets similar to the inner planets of the Solar System, orbiting around the nearby star L 98-59. Among them there is a planet with half the mass of Venus -the lowest mass exoplanet ever measured using the radial velocity technique-, an oceanic planet, and a planet possibly within the habitable zone.

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  • Perseids on MAGIC telescope

    For yet another year the sky-live.tv channel will be broadcasting the maximum of the Perseids from the Canary Observatories, with the collaboration of the Energy Efficiency Laboratories (EELabs) project, coordinated by the Instituto de Astrofísica de Canarias (IAC) and the Innovation Service of the Cabildo Insular of La Palma. This will be during the night of 12th to 13th August, when the best estimates for the activity of the meteors is a rate of 100 per hour. Even though the first records of the Perseids date from 36 A.D., it was not until 1835 that the Belgian astronomer Adolphe Quetelet

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  • The image shows the process of nuclear feeding of a black hole in the galaxy NGC 1566, and how the dust filaments, which surround the active nucleus, are trapped and rotate in a spiral around the black hole until it swallows them. Credit: European Southern Observatory (ESO).

    The black holes at the centres of galaxies are the most mysterious objects in the Universe, not only because of the huge quantities of material within them, millions of times the mass of the Sun, but because of the incredibly dense concentration of matter in a volume no bigger than that of our Solar System. When they capture matter from their surroundings they become active, and can send out enormous quantities of energy from the capture process, although it is not easy to detect the black hole during these capture episodes, which are not frequent.

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  • Cosmological simulation of the gas density around a massive galaxy. The activity from the black hole carves bubbles in the surrounding of galaxies, which in turns modulates the evolution of neighboring galaxies.

    Every massive galaxy hosts a black hole in its center. Both the size and the mass of these black holes is negligible compared to the host galaxy, millions of times bigger and more massive. Yet, and despite their apparent irrelevance, black holes play a fundamental role in the Universe: without them we don’t understand how galaxies form. Thus, understanding the co-evolution of galaxies and black holes is a central question in modern astrophysics. By analyzing the properties of hundreds of thousands of galaxies we have been able to show that a black hole can affect, not only its own galaxy

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