Publication type: Refereed

  • Publication
    Double-peak structure in the cyclic optical outbursts of blazar OJ 287.
    An international monitoring project, called OJ-94, was set up with the aim of monitoring blazar OJ 287 during the predicted optical outburst (in fall 1994...
  • Publication
    Doubling of minute-long quasi-periodic pulsations from super-flares on a low-mass star
    Using the ULTRASPEC instrument mounted on the 2.4-m Thai National Telescope, we observed two large flares, each with a total energy close to 10 34 erg with sub...
  • Publication
    Downflowing umbral flashes as evidence of standing waves in sunspot umbrae
    Context. Umbral flashes are sudden brightenings commonly visible in the core of some chromospheric lines. Theoretical and numerical modeling suggests that they...
  • Publication
    Dozens of virtual impactor orbits eliminated by the EURONEAR VIMP DECam data mining project
    Context. Massive data mining of image archives observed with large etendue facilities represents a great opportunity for orbital amelioration of poorly known...
  • Publication
    DQ white-dwarf stars with low C abundance: possible progenitors
    Aims.The present paper focuses on the evolution of hydrogen-deficient white dwarfs with the aim of exploring the consequences of different initial envelope...
  • Publication
    Dramatic Drop in the X-Ray Polarization of Swift J1727.8–1613 in the Soft Spectral State
    Black hole X-ray binaries exhibit different spectral and timing properties in different accretion states. The X-ray outburst of a recently discovered and...
  • Publication
    Dramatic emission line variations in QSO KAZ 102 and possible causes
    We report optical spectroscopic observations of the radio-quiet quasar Kaz 102. We find impressive variations of the Hα emission line both in shape and...
  • Publication
    Drift wave stabilized by an additional streaming ion or plasma population
    It is shown that the universally unstable kinetic drift wave in an electron-ion plasma can very effectively be suppressed by adding an extra flowing ion (or...
  • Publication
    Dual-frequency mapping with the Tenerife cosmic microwave background experiments
    We present maps of the sky at intermediate angular resolution (5 deg) of the declination range 35.0-45.0 deg obtained with the Tenerife cosmic microwave...