Publication type: Non-refereed

  • Publication
    Using the TYCHO Catalogue for AXAF
    AXAF, the Advanced X-ray Astrophysics Facility will be the third satellite in the series of great observatories in the NASA program, after the Hubble Space...
  • Publication
    Utilization of redundant polarized solar spectra to infer the polarization properties of the new generation of large aperture solar telescopes
    Spectro-polarimetry plays an important role in the study of solar magnetism and strongly influences the design of the new generation of solar telescopes...
  • Publication
    UTM, a universal simulator for lightcurves of transiting systems
    The Universal Transit Modeller (UTM) is a light-curve simulator for all kinds of transiting or eclipsing configurations between arbitrary numbers of several...
  • Publication
    UV and optical quantitative spectroscopy of early B-type supergiants in M 33
    We present the analysis of UV and optical spectra of M 33 early B-type supergiants. Stellar parameters, metal abundances (Si, Mg, O and N) and mass loss rates...
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    UV and optical variability of the low luminosity quasar PG 1351+64
    PG 1351+64 is a bright radio quiet quasar (z = 0.088, mV ≅ 14). IUE observations obtained within few months in 1982 - 1983 showed variations in the 1200 - 2000...
  • Publication
    UV intensity distributions of the quiet Sun observed with Sunrise
    High resolution solar images in the near UV have been obtained with the Solar UV Filtergraph (SUFI) onboard the Sunrise balloon borne observatory, amongst...
  • Publication
    UV Radiation in the Solar System
    The source of UV radiation in the solar system is mainly the Sun. The influence of its various compounds as well as the variability is discussed here. It is...
  • Publication
    UV Spectroscopy of Metal-Poor Massive Stars in the Small Magellanic Cloud
    The Hubble Space Telescope has provided the first clear evidence for weaker winds of metal-poor massive stars in the Small Magellanic Cloud, confirming...
  • Publication
    UV Spectroscopy of SN 1993J and Detection of Stellar Wind Material from the Progenitor
    Low and high resolution IUE spectra (1150-3200 Angstroms) of SN 1993J in NGC 3031 were obtained starting on 1993 March 30.2 UT. The initially strong ultraviolet...