Journal: Astronomy and Astrophysics

  • Publication
    Solar granulation from photosphere to low chromosphere observed in Ba II 4554 Å line
    Aims: The purpose of this paper is to characterize the statistical properties of solar granulation in the photosphere and low chromosphere up to 650 km. Methods...
  • Publication
    Solar Hα excess during Solar Cycle 24 from full-disk filtergrams of the Chromospheric Telescope
    Context. The chromospheric Hα spectral line is a strong line in the spectrum of the Sun and other stars. In the stellar regime, this spectral line is already...
  • Publication
    Solar multiobject multiframe blind deconvolution with a spatially variant convolution neural emulator
    Context. The study of astronomical phenomena through ground-based observations is always challenged by the distorting effects of Earth's atmosphere. Traditional...
  • Publication
    Solar oscillations: time analysis of the GOLF p-mode signal
    We determine the intrinsic phase lag of the GOLF data for the solar p-mode velocity deduced either from one of the narrow band photometers working alternatively...
  • Publication
    Solar P-mode frequencies from the IRIS network.
    The Iris network for helioseismology has operated since 1989. We present tables of solar p-mode frequencies for observations taken during the four summer...
  • Publication
    Solar polarimetry in the K I D2 line : A novel possibility for a stratospheric balloon
    Of the two solar lines, K I D1 and D2, almost all attention so far has been devoted to the D1 line, as D2 is severely affected by an O2 atmospheric band. This...
  • Publication
    Solar Radial Velocity and Oscillations as Measured by Sodium and Potassium Resonant Scattering Spectrometers
    Since the beginning of 1990, a sodium based resonance scattering spectrometer belonging to the IRIS Network has operated at Observatorio del Teide side by side...
  • Publication
    Solar surges related to UV bursts. Characterization through k-means, inversions, and density diagnostics
    Context. Surges are cool and dense ejections typically observed in chromospheric lines and closely related to other solar phenomena such as UV bursts or coronal...
  • Publication
    Solar-like oscillations in HD 181420: data analysis of 156 days of CoRoT data
    Context: The estimate of solar-like oscillation properties, such as their frequencies, amplitudes and lifetimes, is challenging because of their low amplitudes...