Astrofísicas: Métodos

  • Publicación
    PCA detection and denoising of Zeeman signatures in polarised stellar spectra
    Aims: Our main objective is to develop a denoising strategy to increase the signal to noise ratio of individual spectral lines of stellar spectropolarimetric...
  • Publicación
    Performance of the joint LST-1 and MAGIC observations evaluated with Crab Nebula data
    Aims: Large-Sized Telescope 1 (LST-1), the prototype for the Large-Sized Telescope at the upcoming Cherenkov Telescope Array Observatory, is concluding its...
  • Publicación
    Period, epoch, and prediction errors of ephemerides from continuous sets of timing measurements
    Space missions such as Kepler and CoRoT have led to large numbers of eclipse or transit measurements in nearly continuous time series. This paper shows how to...
  • Publicación
    Persistent magnetic vortex flow at a supergranular vertex
    Context. Photospheric vortex flows are thought to play a key role in the evolution of magnetic fields. Recent studies show that these swirling motions are...
  • Publicación
    Phase diversity restoration of sunspot images. I. Relations between penumbral and photospheric features
    We investigate the dynamics of and the relations between small-scale penumbral and photospheric features near the outer penumbral boundary: penumbral grains...
  • Publicación
    Phase diversity restoration of sunspot images. II. Dynamics around a decaying sunspot
    Two time series, taken simultaneously in the G-band and in white-light, and corrected for telescope aberrations and turbulence perturbations using the method of...
  • Publicación
    Phasing segmented mirrors using defocused images at visible wavelengths
    Plans for future optical telescopes of diameter more than 10m are based on segmented mirrors, made up of hundreds or even thousands of segments. A challenge for...
  • Publicación
    Photo-dynamical characterisation of the TOI-178 resonant chain. Exploring the robustness of transit-timing variations and radial velocity mass characterisations
    Context. The TOI-178 system consists of a nearby, late-K-dwarf with six transiting planets in the super-Earth to mini-Neptune regime, with radii ranging from to...
  • Publicación
    Photometric Amplitude Distribution of Stellar Rotation of KOIs—Indication for Spin-Orbit Alignment of Cool Stars and High Obliquity for Hot Stars
    The observed amplitude of the rotational photometric modulation of a star with spots should depend on the inclination of its rotational axis relative to our...