Astrophysical: Magnetic fields

  • Publication
    Anisotropic collisions and impact circular polarization. Application to the solar Halpha line
    Aims:In light of recent contradictory observational results concerning the atomic polarization of solar H I lines, our purpose is to present certain collisional...
  • Publication
    Applicability of Milne-Eddington inversions to high spatial resolution observations of the quiet Sun
    Context. The physical conditions of the solar photosphere change on very small spatial scales both horizontally and vertically. Such a complexity may pose a...
  • Publication
    Are Electric Currents Heating the Magnetic Chromosphere?
    This Letter presents an analysis of three-dimensional vector currents and temperatures observed in a sunspot from the photosphere to the chromosphere, spanning...
  • Talk
    Are magnetic fields shaping PNe?
    This question is important because a large fraction of planetary nebulae (about 80%) are bipolar or elliptical rather than spherically symmetric. Modern...
  • Publication
    Are solar acoustic modes correlated?
    We have studied the statistical properties of the energy of individual acoustic modes, extracted from 310 days of GOLF data near the solar minimum. The...
  • Publication
    Are Tornado-like Magnetic Structures Able to Support Solar Prominence Plasma?
    Recent high-resolution and high-cadence observations have surprisingly suggested that prominence barbs exhibit apparent rotating motions suggestive of a tornado...
  • Publication
    Are young radio sources in equipartition?
    Aims: The knowledge of physical conditions in young radio sources is important for defining the framework of models describing radio source evolution. We...
  • News
    Astronomers observe potential magnetic flip around a supermassive black hole
    An international research, in which a team from the Instituto de Astrofísica de Canarias (IAC) has participated, has provided new evidence for an enigmatic...
  • News
    Astronomers study the magnetic chaos of galaxies in the nearby Universe
    International research, with the participation of the Instituto de Astrofísica de Canarias (IAC), reveals that perturbations in the magnetic fields of galaxies...