Journal: Astronomy and Astrophysics

  • Publication
    Negative gas-phase metallicity gradients in the narrow-line region and galactic disc of local galaxies hosting active galactic nuclei
    The gas-phase metallicity distribution in galaxies offers significant information on their evolution. We report the discovery of negative radial gradients in...
  • Publication
    Neural translation for Stokes inversion and synthesis
    Context. The physical conditions in stellar atmospheres, such as temperature, velocity, and magnetic fields, can be obtained by interpreting solar spectro...
  • Publication
    Neutral carbon and highly excited CO in a massive star-forming main sequence galaxy at z = 2.2
    We used the Plateau De Bure Interferometer to observe multiple CO and neutral carbon transitions in a z = 2.2 main sequence disk galaxy, BX610. Our observation...
  • Publication
    Neutral oxygen spectral line formation revisited with new collisional data: large departures from LTE at low metallicity
    Aims: A detailed study is presented, including estimates of the impact on elemental abundance analysis, of the non-local thermodynamic equilibrium (non-LTE)...
  • Publication
    New and updated stellar parameters for 71 evolved planet hosts. On the metallicity-giant planet connection<xref ref-type="fn" rid="FN1"><xref ref-type="fn" rid="FN2">⋆<xref ref-type="fn" rid="FN3">⋆⋆
    Context. It is still being debated whether the well-known metallicity-giant planet correlation for dwarf stars is also valid for giant stars. For this reason...
  • Publication
    New and updated stellar parameters for 90 transit hosts. The effect of the surface gravity
    Context. Precise stellar parameters are crucial in exoplanet research for correctly determining the planetary parameters. For stars hosting a transiting planet...
  • Publication
    New candidate planetary nebulae in M 81
    A 34'x34' field centred on the spiral galaxy M 81 has been searched for emission-line objects using the prime focus wide field camera (WFC) of the 2.54 m Isaac...
  • Publication
    New constraints on the central mass contents of Omega Centauri from combined stellar kinematics and pulsar timing
    Aims. We performed a combined analysis of stellar kinematics with line-of-sight accelerations of millisecond pulsars (MSPs) to probe the mass content of Omega...
  • Publication
    New constraints on the formation and settling of dust in the atmospheres of young M and L dwarfs
    Context. Gravity modifies the spectral features of young brown dwarfs (BDs). A proper characterization of these objects is crucial for the identification of the...