Astrofísicas: Fotometría ultravioleta

  • Publicación
    Pre-main sequence lithium burning. 1: Weak T Tauri stars
    We report high-resolution spectroscopic observations for a sample of 38 T Tauri stars (TTS), complemented by UBVRI photometry of 13 TTS, and CCD VRI photometry...
  • Publicación
    The evolution of CN emission in Halley's comet with heliocentric distance
    The authors have made observations of the spectrum of comet Halley on various dates between September 1985 and December 1986, obtaining multipositional long...