Publication type: Non-refereed

  • Publication
    Upgrading the polarisation modulation unit of the Gregor Infrared Spectrograph
    The Gregor Infrared Spectrograph (GRIS) is installed at the Gregor telescope at Observatorio del Teide, Spain. The instrument started observations in 2012 and...
  • Publication
    Upgrading VIMOS
    Not Available
  • Publication
    Upholding the unified model for AGN: VLT/FORS2 spectropolarimetry of Seyfert 2 galaxies
    The origin of the unification model for AGN was the detection of broad hydrogen recombination lines in the optical polarized spectrum of the Seyfert 2 galaxy...
  • Publication
    Uplink correction demonstrator: test bench and experimental results
    The Uplink Wavefront Corrector System (UWCS) has been conceived by following the premises from simulation outcomes as a pathfinder instrument to demonstrate...
  • Publication
    Uranium-238-Thorium-230-Radium-226 Disequilibria in Historical Kilauea Volcano Lavas: Mantle Melting Within the Hawai'ian Plume
    Not Available
  • Publication
    URCA Process in Neutron Stars with Superstrong Magnetic Fields
    We calculate the emissivity for the direct URCA process in strongly magnetized, degenerate matter in neutron stars, under beta -equilibrium. We show that, if...
  • Publication
    US atlas of optical telescopes, 2nd edition
    This atlas shows the locations of and gives information about optical telescopes used for astronomical research in the United States as of late 1986. Those...
  • Publication
    Use of 3D printing in astronomical mirror fabrication
    In this paper we are exploring the possibilities of 3D printing in the fabrication of mirrors for astronomy. Taking the advantages of 3D printing to solve the...
  • Publication
    Use of a finite state machine approach for sequence control in the GREGOR infrared spectrograph (GRIS)
    Due to the complexity of scientific instruments, such as spectropolarimeters, managing instrument sequences can be challenging. To address this problem, a...