Astrophysical: Methods

  • Publication
    Fourier method of determining the rotational velocities in OB stars
    Aims:We present a comprehensive study that applies the Fourier transform to a sample of O and early B-type stars (either dwarfs, giants, or supergiants) to...
  • Publication
    Frequency dependence of p-mode frequency shifts induced by magnetic activity in Kepler solar-like stars
    The variations of the frequencies of the low-degree acoustic oscillations in the Sun induced by magnetic activity show a dependence on radial order. The...
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    Full disk helioseismology: repetitive music and the question of gap filling
    Helioseismology requires continuous measurements of very long duration, months to years. This paper addresses the specific and limited case of full disk...
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    Fully adaptive Bayesian algorithm for data analysis: FABADA
    The discovery potential from astronomical and other data is limited by their noise. We introduce a novel non-parametric noise reduction technique based on...
  • Publication
    Gaia Data Release 1. Testing parallaxes with local Cepheids and RR Lyrae stars
    Context. Parallaxes for 331 classical Cepheids, 31 Type II Cepheids, and 364 RR Lyrae stars in common between Gaia and the Hipparcos and Tycho-2 catalogues are...
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    Gaia Data Release 2. Calibration and mitigation of electronic offset effects in the data
    Context. The European Space Agency's Gaia satellite was launched into orbit around L2 in December 2013. This ambitious mission has strict requirements on...
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    Gaia Data Release 2. Processing the spectroscopic data
    Context. The Gaia Data Release 2 (DR2) contains the first release of radial velocities complementing the kinematic data of a sample of about 7 million...
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    Gaia Early Data Release 3. Acceleration of the Solar System from Gaia astrometry
    Context. Gaia Early Data Release 3 (Gaia EDR3) provides accurate astrometry for about 1.6 million compact (QSO-like) extragalactic sources, 1.2 million of which...
  • Publication
    Gaia early DR3 systemic motions of Local Group dwarf galaxies and orbital properties with a massive Large Magellanic Cloud
    Aims: We perform a comprehensive determination of the systemic proper motions of 74 dwarf galaxies and dwarf galaxy candidates in the Local Group based on Gaia...