Journal: Astronomy and Astrophysics

  • 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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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 merger challenge: A comparison study between machine learning-based detection methods
    Aims: Various galaxy merger detection methods have been applied to diverse datasets. However, it is difficult to understand how they compare. Our aim is to...
  • Publication
    Galaxy morphology from z ∼ 6 through the lens of JWST
    Context. The James Webb Space Telescope's (JWST's) unprecedented combination of sensitivity, spatial resolution, and infrared coverage has enabled a new era of...
  • Publication
    Gamma-ray flaring activity of NGC1275 in 2016-2017 measured by MAGIC
    We report on the detection of flaring activity from the Fanaroff-Riley I radio galaxy NGC 1275 in very-high-energy (VHE, E > 100 GeV) gamma rays with the Major...