Journal: Astronomy and Astrophysics

  • Publication
    A new method for instrumental profile reconstruction of high-resolution spectrographs
    GJ 9827 is a bright, nearby K7V star orbited by two super-Earths and one mini-Neptune on close-in orbits. The system was first discovered using K2 data and then...
  • Publication
    A new perspective on the stellar mass-metallicity relation of quiescent galaxies from the LEGA-C survey
    We investigated the stellar mass-metallicity relation (MZR) using a sample of 637 quiescent galaxies with 10.4 ≤ log(M */M ⊙) < 11.7 selected from the LEGA-C...
  • Publication
    A new planetary nebula in the outer reaches of the Galaxy
    Aims: A proper determination of the abundance gradient in the Milky Way requires the observation of objects at large galactiocentric distances. With this aim...
  • Publication
    A new procedure for defining a homogenous line-list for solar-type stars
    Context. The homogenization of the stellar parameters is an important goal for large observational spectroscopic surveys, but it is very difficult to achieve it...
  • Publication
    A new search for planet transits in NGC 6791
    Context: Searching for planets in open clusters allows us to study the effects of dynamical environment on planet formation and evolution. Aims: Considering the...
  • Publication
    A new stellar library in the region of the CO index at 2.3 μm. New index definition and empirical fitting functions
    Context: The analysis of unresolved stellar populations demands evolutionary synthesis models with realistic physical ingredients and extended wavelength...
  • Publication
    A new visual - near-infrared diagnostic to estimate the metallicity of cluster and field dwarf stars
    We present a theoretical calibration of a new metallicity diagnostic based on the Strömgren index m1 and on visual - near-infrared (NIR) colors to estimate the...
  • Publication
    A new α-enhanced super-solar metallicity population
    We performed a uniform and detailed analysis of 1112 high-resolution spectra of FGK dwarfs obtained with the HARPS spectrograph at the ESO 3.6 m telescope (La...
  • Publication
    A new, evolved bipolar planetary nebula.
    Optical imaging and spectroscopy reveal that the ionised region No.252 in the list of Marsalkowa (1974Ap&SS..27....3M), whose photograph is presented in the `...