Astrophysical: Starspots

  • Publication
    Erratum: Rotation periods of late-type dwarf stars from time series high-resolution spectroscopy of chromospheric indicators
    Not Available
  • Publication
    From CoRoT 102899501 to the Sun. A time evolution model of chromospheric activity on the main sequence
    Aims: The present study reports measurements of the rotation period of a young solar analogue, estimates of its surface coverage by photospheric starspots and...
  • Publication
    Glancing through the debris disk: Photometric analysis of DE Boo with CHEOPS
    Aims: DE Boo is a unique system, with an edge-on view through the debris disk around the star. The disk, which is analogous to the Kuiper belt in the Solar...
  • Publication
    Hα Photometry of Two Contact Binaries
    We carried out optical and Hα photometry of two contact binaries (V861 Herculis, EQ Tauri). The light curve modeling revealed stellar spots in both contact...
  • Publication
    Long-term photometry of IC 348 with the Young Exoplanet Transit Initiative network
    We present long-term photometric observations of the young open cluster IC 348 with a baseline time-scale of 2.4 yr. Our study was conducted with several...
  • Publication
    Long-term stability of spotted regions and the activity-induced Rossiter-McLaughlin effect on V889 Herculis. A synergy of photometry, radial velocity measurements, and Doppler imaging
    Context: The young active G-dwarf star V889 Herculis (HD 171488) shows pronounced spots in Doppler images as well as large variations in photometry and radial...
  • Publication
    Long-term starspot activity of short-period RS Canum Venaticorum stars. III - BH Virginis
    The photometric distortion waves in the light curves of the short-period RS CVn system BH Vir by a dark, circular spot model for the active regions on the...
  • Publication
    Long-term starspot activity on BH Virginis.
    The authors parameterize the photometric distortion waves in the short-period RS CVn system BH Vir by a dark, circular spot model for the active regions on the...
  • Publication
    Measuring stellar surface rotation and activity with the PLATO mission: I. Strategy and application to simulated light curves
    The Planetary Transits and Oscillations of stars mission (PLATO) will allow us to measure surface rotation and monitor photometric activity of tens of thousands...