Journal: Astronomy and Astrophysics

  • Publication
    Rotationally resolved spectroscopy of (20000) Varuna in the near-infrared
    Context. Models of the escape and retention of volatiles by minor icy objects exclude any presence of volatile ices on the surface of trans-Neptunian objects...
  • Publication
    Rotationally resolved spectroscopy of dwarf planet (136472) Makemake
    Context. Icy dwarf planets are key for studying the chemical and physical states of ices in the outer solar system. The study of secular and rotational...
  • Publication
    Rubidium abundances in solar metallicity stars
    Context. Rubidium is one of the few elements produced by the neutron capture s- and r-processes in almost equal proportions. Recently, a Rb deficiency ([Rb/Fe]...
  • Publication
    Rubidium and zirconium abundances in massive Galactic asymptotic giant branch stars revisited
    Context. Luminous Galactic OH/IR stars have been identified as massive (>4-5 M⊙) asymptotic giant branch (AGB) stars experiencing hot bottom burning and Li...
  • Publication
    Rubidium, zirconium, and lithium production in intermediate-mass asymptotic giant branch stars
    Context. A recent survey of a large sample of Galactic intermediate-mass (>3 M&sun;) asymptotic giant branch (AGB) stars shows that they exhibit large...
  • Publication
    RXCJ1111.6+4050 galaxy cluster: Observational evidence of a transitional fossil group
    We present a detailed kinematical and dynamical study of the galaxy cluster RXCJ1111.6+4050 (RXCJ1111), at z = 0.0756 using 104 new spectroscopic redshifts of...
  • Publication
    S Ori J053825.4-024241: a classical T Tauri-like object at the substellar boundary
    We present a spectrophotometric analysis of S Ori J053825.4-024241, a candidate member close to the substellar boundary of the young (1-8 Myr), nearby (~360 pc)...
  • Publication
    S4N: A spectroscopic survey of stars in the solar neighborhood. The Nearest 15 pc
    We report the results of a high-resolution spectroscopic survey of all the stars more luminous than M_V = 6.5 mag within 14.5 pc from the Sun. The Hipparcos...
  • Publication
    San Pedro Mártir observations of microvariability in obscured quasars
    Fast brightness variations are a unique tool to probe the innermost regions of active galactic nuclei (AGN). These variations are called microvariability or...