Astrofísicas: Espectroscopia

  • Publicación
    GTC and OSIRIS: expanding the metallicity horizon of massive stars knowledge
    Massive stars are fundamental drivers of the Universe because of their injection of energy, momentum, and nuclear-processed material in every stage of their...
  • Publicación
    GTC Follow-up Observations of Very Metal-poor Star Candidates from DESI
    The observations from the Dark Energy Spectroscopic Instrument (DESI) will significantly increase the numbers of known extremely metal-poor stars by a factor of...
  • Publicación
    HD 50844 observed by CoRoT (Poretti+, 2009)
    We compared the results from SigSpec and from the iterative-sine-wave fitting, considering an error range of 0.005d-1 in frequency (i.e., a width 3.4 times...
  • Publicación
    High resolution long-slit spectroscopy of A 78.
    Not Available
  • Publicación
    High-resolution observations of bright boulders on asteroid Ryugu: 2. Spectral properties
    Many small boulders with reflectance values higher than 1.5 times the average reflectance have been found on the near-Earth asteroid 162,173 Ryugu. Based on...
  • Charla
    High-resolution optical spectroscopy for everyone: want a PEPSI?
    The demand of high-res spectroscopy had seen a tremendous increase after the discovery of exoplanets. Such instruments are now among the standard equipment of...
  • Charla
    IAU G5: "Extreme Precision Stellar Spectroscopy"
    The new generation of spectrometers designed for extreme precision radial velocities enable correspondingly precise stellar spectroscopy. It is now fruitful to...
  • Publicación
    Improved method of hydrous mineral detection by latitudinal distribution of 0.7-μm surface reflectance absorption on the asteroid Ryugu
    Global multiband images of the C-type asteroid (162173) Ryugu were obtained by the optical navigation camera telescope (ONC-T) onboard Hayabusa2. The 0.7-μm...
  • Publicación
    Intrinsic parameters of massive OB-stars
    We present the results of our observations of stars of type O5 and earlier and show that inclusion of the line blocking between 228 and 912 A solves the problem...