Journal: Astronomy and Astrophysics

  • Publication
    Galactic cirri in deep optical imaging
    The ubiquitous presence of Galactic cirri in deep optical images represents a major obstacle to study the low surface brightness features of extragalactic...
  • Publication
    Galactic evolution of beryllium. I. NLTE effects and accuracy of beryllium abundances in metal-poor stars.
    We have investigated in detail the uncertainties in deriving beryllium abundances for metal-poor stars from the BeII resonance doublet at λ 3131A. These...
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    Galactic evolution of nitrogen
    We present detailed spectroscopic analysis of nitrogen abundances in 31 unevolved metal-poor stars analysed by spectral synthesis of the near-UV NH band at 3360...
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    Galactic evolution of oxygen. OH lines in 3D hydrodynamical model atmospheres
    Context. Oxygen is the third most common element in the Universe. The measurement of oxygen lines in metal-poor unevolved stars, in particular near-UV OH lines...
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    Galactic planetary nebulae with Wolf-Rayet nuclei. I. Objects with [WC]-early type stars
    Spatially resolved long-slit spectrophotometric data for the planetary nebulae PB 6, NGC 2452, NGC 2867, NGC 6905 and He 2-55 are presented. Different knots...
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    Galaxies within galaxies in the TIMER survey: stellar populations of inner bars are scaled replicas of main bars
    Inner bars are frequent structures in the local Universe and thought to substantially influence the nuclear regions of disc galaxies. In this study we explore...
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    Galaxy classification: deep learning on the OTELO and COSMOS databases
    Context. The accurate classification of hundreds of thousands of galaxies observed in modern deep surveys is imperative if we want to understand the universe...
  • Publication
    Galaxy cluster matter profiles: I. Self-similarity, mass calibration, and observable-mass relation validation employing cluster mass posteriors
    We present a study of the weak lensing inferred matter profiles ΔΣ(R) of 698 South Pole Telescope (SPT) thermal Sunyaev-Zel'dovich effect (tSZE) selected and...
  • Publication
    Galaxy mass-size segregation in the cosmic web from the CAVITY parent sample
    Context. The mass-size relation is a fundamental galaxy scaling relation that is intrinsically linked to galaxy formation and evolution. The physical processes...