International research led by the Instituto de Astrofísica de Canarias (IAC) and the University of La Laguna (ULL) has found the first evidence of a massive galaxy with no dark matter. The result is a challenge to the current standard model of cosmology. The study is published in the specialized journal Astronomy and Astrophysics. A team of scientists, led by the researcher at the IAC and the University of La Laguna (ULL) Sebastién Comerón, has found that the galaxy NGC 1277 does not contain dark matter.This is the first time that a massive galaxy (it has a mass several times that of the
CaII Kgrains, i.e., intermittent, short-lived (about 1 minute), periodic (2-4 minutes), pointlike chromospheric brightenings, are considered to be the manifestations of acoustic waves propagating upward from the solar surface and developing into shocks in the chromosphere. After the simulations of Carlsson and Stein, we know that hot shocked gas moving upward interacting with the downflowing chromospheric gas (falling down after having been displaced upward by a previous shock) nicely reproduces the spectral features of the CaII K profiles observed in such grains, i.e., a narrowband emission
La XXXIV Canary Islands Winter School of Astrophysics, organizada por el Instituto de Astrofísica de Canarias (IAC) y la Universidad de La Laguna (ULL), tendrá lugar entre los días 8 y 15 de noviembre. En esta edición, cerca de 60 estudiantes de 15 países se reunirán para conocer los últimos avances en el campo de la evolución de galaxias, con el Grupo Local como punto de referencia. Durante una semana, el edificio IACTEC, en el Parque Científico y Tecnológico de Tenerife (La Laguna), acogerá a 60 estudiantes de máster, doctorado y postdoctorado para nutrirse sobre las novedades del panorama
