Astrophysical: Polarimetry

  • Publication
    Is LTE a Suitable Approximation for Fe I - based Diagnostics of the Thermal Structure of Sunspots?
    NLTE effects in iron lines are carefully investigated for the sunspot umbral model of Maltby et. al. (1986). Our model atom is realistic: it has hundreds of...
  • Talk
    JWST view of Polycyclic Aromatic Hydrocarbons and dust in local active galaxies
    Nowadays, it is widely accepted that most galaxies undergo an active phase in their evolution. The impact of the energy released by active galactic nuclei (AGN)...
  • Publication
    New polarimetric and spectroscopic evidence of anomalous enrichment in spinel-bearing calcium-aluminium-rich inclusions among L-type asteroids
    Asteroids can be classified into several groups based on their spectral reflectance. Among these groups, the one belonging to the L-class in the taxonomic...
  • Publication
    On the Collisional Disalignment of Dust Grains in Illuminated and Shaded Regions of IC 63
    Interstellar dust grain alignment causes polarization from UV to mm wavelengths, allowing the study of the geometry and strength of the magnetic field. Over the...
  • Publication
    Photometric and Polarimetric Observations of the Wolf-Rayet Eclipsing Binary HD 5980 in the Small Magellanic Cloud
    We present results of photometry and photopolarimetry of the Wolf-Rayet eclipsing binary system HD 5980 in the Small Magellanic Cloud, which underwent an...
  • Publication
    Polarimetric Measurements of Sunspots
    Making emphasis on observations that have included some type of polarization analysis, I concentrate on two subjects. First, the vector magnetic field...
  • Publication
    Polarizing properties of grazing-incidence X-ray mirrors - Comment
    We show that grazing-incidence telescopes, like those used for X-ray imaging, present negligible instrumental polarization. This property does not depend on the...
  • Publication
    Space Certifiability of LCVRs
    This contribution is a report on a test campaign carried out by the IAC, in collaboration with Construcciones Aeronauticas, S.A. (CASA) as a main contrac tor...
  • Publication
    Spectropolarimetry of solar faculae - High spatial resolution results
    A new method to measure the magnetic field strength of small-scale solar magnetic concentrations is presented. It is based on the center of gravity method...