Publication type: Non-refereed

  • Publication
    The peculiar O9.5V star BD+53°2790, the massive counterpart to the X-ray binary system 4U 2206+54
    The X-ray binary system 4U 2206+54 hides many mysteries. Among them, the surprising behavior of both of its co components: the O9.5 dwarf star BD+53°2790 and a...
  • Publication
    The peculiar planetary nebula M1-78.
    Not Available
  • Publication
    The Peculiar Rotation Curve of NGC 404
    Not Available
  • Publication
    The Peculiar Variability of PKS 0736+017
    We present BVR photometric observations of PKS 0736+017. Variations with different timescales and amplitudes were observed. Throughout our observations, an...
  • Publication
    The Penn State - TCfA Search for Planets Around Evolved Stars
    We describe the status of our long-term radial velocity (RV) survey of a sample of 1000 GK-giants with the 9.2-m Hobby-Eberly Telescope and its High Resolution...
  • Publication
    The Pennsylvania--Toruń Planet Search: Target Characteristics and Recent Results
    More than 450 stars hosting planets are known today but only approximately 30 planetary systems were discovered around stars beyond the Main Sequence. The...
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    The Pennsylvania-Toruń search for planets around evolved stars with HET
    Searches for planets around giants represent an essential complement to 'traditional' surveys, because they furnish information about properties of planetary...
  • Publication
    The Pennsylvania-Torun Search for Planets: Bisector Measurements of HD 102272
    Searches for planets around massive stars are essential for developing general understanding of planet formation and evolution of planetary systems. The main...
  • Publication
    The penumbral solar filaments from the photosphere to the chromosphere
    The magnetic field structure of sunspots above the photosphere remain poorly understood due to limitations in observations and the complexity of these...