The study, led by Paula Izquierdo, a doctoral student at the Instituto de Astrofísica de Canarias (IAC) and the University of La Laguna (ULL), has gone deeply into the analysis of this exceptional white dwarf, which shows periodic transits produced by fragments of a shredded planetesimal. The observations used for this research were obtained with the Gran Telescopio Canarias and with the Liverpool Telescope.

Low-luminosity active galactic nuclei (LLAGNs) are found in about 1/3 of all the galaxies in the Local Universe, establishing the most numerous class of AGNs. At low accretion rates, LLAGNs are expected to develop major changes in the structure of the accretion disc when compared to their bright counterparts, Seyfert galaxies and Quasars. Here we present high-angular resolution data (~13 pc) for the LLAGN in the nucleus of NGC 1052, covering 10 orders of magnitude in frequency from radio to X-rays. The flux distribution of the nucleus is well described by a broken power law plus an inverse

A study involving a researcher from the Instituto de Astrofísica de Canarias (IAC), which has been led by a researcher at the Instituto de Física Fundamental (IFF-CSIC) and the Instituto de Ciencias del Cosmos (UB-IEEC), argues that the explosion that Johannes Kepler observed in 1604 was caused by a merger of two stellar residues.

An international team led by researchers from the Instituto de Astrofísica de Canarias (IAC) and the Universidad de La Laguna (ULL) has cataloged around 200 oscillations of the solar prominences during the first half of 2014. Its development has been possible thanks to the GONG network of telescopes, of which one of them is located in the Teide Observatory.

Galaxy-cluster gravitational lenses can magnify background galaxies by a total factor of up to ~50. Here we report an image of an individual star at redshift z = 1.49 (dubbed MACS J1149 Lensed Star 1) magnified by more than ×2,000. A separate image, detected briefly 0.26″ from Lensed Star 1, is probably a counterimage of the first star demagnified for multiple years by an object of ≳3 solar masses in the cluster. For reasonable assumptions about the lensing system, microlensing fluctuations in the stars’ light curves can yield evidence about the mass function of intracluster stars and

We report ground-based spectrophotometry of KIC 8462852, during its first dimming events since the end of the Kepler mission. The dimmings show a clear colour-signature, and are deeper in visual blue wavelengths than in red ones. The flux loss' wavelength dependency can be described with an Ångström absorption coefficient of 2.19±0.45, which is compatible with absorption by optically thin dust with particle sizes on the order of 0.0015 to 0.15 μm. These particles would be smaller than is required to be resistant against blow-out by radiation pressure when close to the star. During