Journal: Astronomy and Astrophysics

  • Publication
    Soft-state optical spectroscopy of the black hole MAXI J1305-704
    The X-ray dipper MAXI J1305-704 is a dynamically confirmed black hole (BH) X-ray binary discovered a decade ago. While its only outburst has been studied in...
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    Solar activity cycle frequency shifts of low-degree p-modes
    We report on an extensive analysis of the low-degree p-mode frequency shifts over Solar Cycle n(b {o}) 22 (1984--1995) based on continuous data taken at the...
  • Publication
    Solar Fe abundance and magnetic fields. Towards a consistent reference metallicity
    Aims: We investigate the impact on Fe abundance determination of including magnetic flux in series of 3D radiation-magnetohydrodynamics (MHD) simulations of...
  • 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...
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    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...