Journal: Astronomy and Astrophysics

  • Publication
    Temporal changes of the flare activity of Proxima Centauri
    Context. We study temporal variations of the emission lines of Hα, Hɛ, H and K CaII, D1 and D2 NaI, He4026, and He5876 in the HARPS spectra of Proxima Centauri...
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    Temporal characteristics of solar p-modes.
    A method for ``time/frequency'' analysis is shortly described, with a discussion of its limitations in time and frequency resolution, and in sensitivity to...
  • Publication
    Temporal evolution of arch filaments as seen in He I 10 830 Å
    Aims: We study the evolution of an arch filament system (AFS) and of its individual arch filaments to learn about the processes occurring in them. Methods: We...
  • Publication
    Temporal evolution of small-scale internetwork magnetic fields in the solar photosphere
    Context. While the longitudinal field that dominates in photospheric network regions has been studied extensively, small-scale transverse fields have recently...
  • Publication
    Temporal evolution of small-scale internetwork magnetic fields in the solar photosphere (Corrigendum)
  • Publication
    Temporal evolution of the Evershed flow in sunspots. I. Observational characterization of Evershed clouds
    Context: The magnetic and kinematic properties of the photospheric Evershed flow are relatively well known, but not completely understood. The evolution of the...
  • Publication
    Temporal relation between quiet-Sun transverse fields and the strong flows detected by IMaX/SUNRISE
    Context. Localized strongly Doppler-shifted Stokes V signals were detected by IMaX/SUNRISE. These signals are related to newly emerged magnetic loops that are...
  • Publication
    Temporal variation of the photometric magnetic activity for the Sun and Kepler solar-like stars
    Context. The photometric time series of solar-like stars can exhibit rotational modulation, that is, brightness variations due to active regions co-rotating...
  • Publication
    Tensor-to-scalar ratio forecasts for extended LiteBIRD frequency configurations
    LiteBIRD is a planned JAXA-led cosmic microwave background (CMB) B-mode satellite experiment aiming for launch in the late 2020s, with a primary goal of...