Journal: Astronomy and Astrophysics

  • Publication
    On the dust content of galaxy clusters
    Context. Most of the contribution to dust emission in clusters of galaxies comes from late-type galaxies. However, several ejection processes of material from...
  • Publication
    On the effect of discrete numbers of stars in chemical evolution models
    We examine the impact of discrete numbers of stars in stellar populations on the results of Chemical Evolution Models. We explore the resulting dispersion in...
  • Publication
    On the estimation of stellar parameters with uncertainty prediction from Generative Artificial Neural Networks: application to Gaia RVS simulated spectra
    Aims: We present an innovative artificial neural network (ANN) architecture, called Generative ANN (GANN), that computes the forward model, that is it learns...
  • Publication
    On the evolutionary status of X-ray selected weak-line T Tauri star candidates in Taurus-Auriga
    We present lithium observations of 35 stars previously reported by Wichmann et al. (1996) to be possible new weak T Tauri stars (WTTS) discovered by ROSAT in...
  • Publication
    On the far infrared bands associated to the vibration of multishell fullerenes
    Multishell fullerenes could be produced in the circumstellar envelopes of rich carbon giants as proposed by Ugarte (1995) and could be carriers of diffuse...
  • Publication
    On the fine structure of sunspot penumbrae. I. A quantitative comparison of two semiempirical models with implications for the Evershed effect
    Sunspot penumbrae exhibit prominent fine structure. Different interpretations of spectropolarimetric observations suggest different, sometimes contradictory...
  • Publication
    On the fine structure of sunspot penumbrae. II. The nature of the Evershed flow
    We investigate the fine structure of the sunspot penumbra by means of a model that allows for a flux tube in horizontal pressure balance with the magnetic...
  • Publication
    On the fine structure of sunspot penumbrae. III. The vertical extension of penumbral filaments
    In this paper we study the fine structure of the penumbra as inferred from the uncombed model (flux tube embedded in a magnetic surrounding) when applied to...
  • Publication
    On the formation of massive stellar clusters
    Here we model a star forming factory in which the continuous creation of stars results in a highly concentrated, massive (globular cluster-like) stellar system...