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.

  • Eclipse de Sol
    Scientists find the explanation at the high temperatures of the solar corona

    Caption: Total solar eclipse from Novosibirsk (Russia). In a total eclipse of the Sun, the Moon exactly covers the disk of the Sun. For a few minutes there is almost total darkness (in broad daylight) and you can see the sun's corona, the stars and the brightest planets. Credits: J.C. Married & D. Lopez - Shelios 2008. An international team led by the University of Queen, of Belfast, and in which the researcher of the Institute of Astrophysics of the Canary Islands (IAC) Andrés Asensio Ramos participates, discovers why the magnetic waves inside the Sun strengthen and grow as

    Advertised on
  • Grupo Winter School
    Winter School was finished on fluids dynamics in Astrophysics

    For ten days, more than sixty doctoral students and postdoctoral researchers from different countries participated in the XXXI Canary Islands Winter School of Astrophysics, which this year focused on computational fluid dynamics for astrophysical uses. Its participants, more than 30% were women, which is considered one of the successes of this School of the Institute of Astrophysics of the Canary Islands (IAC). The design of complex algorithms with modern computer architectures and code optimization to achieve maximum performance has a large number of applications for differents fields of

    Advertised on
  • Artist view of the gamma-ray burst GRB 190114C, discovered by the MAGIC telescopes on January 14, 2019. This discovery unveils, for the first time, the most energetic component of these cosmic events. Credit: Gabriel Pérez Díaz (IAC).
    Discovery of the highest-energy photons from a gamma-ray burst by the MAGIC telescopes

    Gamma-ray bursts (GRBs) are brief and extremely powerful cosmic explosions. They are thought to result from the collapse of massive stars or the merging of neutron stars in distant galaxies. They commence with an initial, very bright flash, called the prompt emission, with a duration ranging from a fraction of a second to hundreds of seconds. The prompt emission is accompanied by the so-called afterglow, a less brighter but longer-lasting emission over a broad range of wavelengths that fades with time. The first GRB detected by the MAGIC telescopes, known as GRB 190114C, reveals for the

    Advertised on
  • a) radial velocity curves and orbital fits for the B-star (purple) and its dark companion (orange), the latter extracted from the wings of the Hα emission (panel c). b) Residuals obtained after subtracting the best orbital models from the velocity points.
    Discovery of a massive black hole companion to a B-type star from radial velocity measurements

    All stellar-mass black holes have hitherto been identified by X-rays emitted from gas that is accreting onto the black hole from a companion star. These systems are all binaries with a black-hole mass that is less than 30 times that of the Sun. Theory predicts, however, that X-ray-emitting systems form a minority of the total population of star–black-hole binaries. When the black hole is not accreting gas, it can be found through radial-velocity measurements of the motion of the companion star. We report here radial-velocity measurements taken over two years of the Galactic B-type star, LB-1

    Advertised on
  • La galaxia irregular NGC 6240 con tres agujeros negros
    Three supermassive black holes detected in interacting galaxies

    New observations of the NGC 5240 system show for the first time that it comprises three merging galaxies,which explains the rapid evolution of galaxies in the universe and does not contradict its age. This study, led by German researchers from Göttingen and Potsdam, at the suggestion of the researcher at the Instituto de Astrofísica de Canarias (IAC) Ana Monreal Ibero, has been carried out using a new technique on which the IAC is working, which combines the integral field spectrograph MUSE with adaptive optics on the VLT telescope from Chile. The irregular galaxy NGC 6240 with three black

    Advertised on
  • Investigador Sascha Husa
    ENTREVISTA CON SASCHA HUSA. “Esperamos entender el origen y evolución del Universo a través de las ondas gravitacionales”

    Continuamente se buscan nuevos horizontes y fronteras que superar y se detectan nuevas señales, como las ondas gravitacionales producidas en fenómenos cósmicos masivos, también en el Big Bang. LIGO (Laser Interferometer Gravitational-Wave Observatory), proyecto en el que colaboran más de mil investigadores de 20 países diferentes, fue precisamente diseñado para detectar estas ondas. Al conseguirlo en 2016, como resultado de la fusión de dos agujeros negros, este observatorio confirmaba una de las predicciones de Einstein en su Teoría de la Relatividad General. Ahora, a esta colaboración

    Advertised on