Journal: Astronomy and Astrophysics

  • Publication
    From stellar to planetary composition: Galactic chemical evolution of Mg/Si mineralogical ratio
    Aims: The main goal of this work is to study element ratios that are important for the formation of planets of different masses. Methods: We study potential...
  • Publication
    From the bulge to the outer disc: StarHorse stellar parameters, distances, and extinctions for stars in APOGEE DR16 and other spectroscopic surveys
    We combine high-resolution spectroscopic data from APOGEE-2 survey Data Release 16 (DR16) with broad-band photometric data from several sources as well as...
  • Publication
    Frontier Fields: Combining HST, VLT, and Spitzer data to explore the z ~ 8 Universe behind the lensing cluster MACSJ0416.1-2403
    Context. The Hubble Space Telescope (HST) Frontier Fields (HFFs) project started at the end of 2013 with the aim of providing extremely deep images of six...
  • Publication
    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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    Full orbital solution for the binary system in the northern Galactic disc microlensing event Gaia16aye
    Gaia16aye was a binary microlensing event discovered in the direction towards the northern Galactic disc and was one of the first microlensing events detected...
  • Publication
    Fundamental parameters and abundances of metal-poor stars: the SDSS standard BD +17 4708
    The atmospheric parameters and iron abundance of the Sloan Digital Sky Survey (SDSS) spectrophotometric standard star BD +17 4708 are critically examined using...
  • Publication
    Fundamental parameters of Galactic luminous OB stars VI. Temperatures, masses and WLR of Cyg OB2 supergiants
    We have analyzed six OB supergiants and one giant covering spectral types from O3 to B1 in the Galactic OB association Cyg OB2 by means of an updated version of...
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    Fundamental parameters of galactic luminous OB stars. II. A spectroscopic analysis of HDE 226868 and the mass of Cygnus X-1.
    We present a spectroscopic analysis of the O9.7 Iab star HDE 226868, which is the optical counterpart of Cygnus X-1. We use this extreme supergiant to test the...
  • Publication
    Fundamental parameters of galactic luminous OB stars. III. Spectroscopic analysis of O stars in Cygnus OB2
    We present the results of the spectral analysis of 11 OB stars in Cyg OB2, among them seven giants and supergiants. The projected rotational velocities of these...