Journal: Astronomy and Astrophysics

  • Publication
    Hydrodynamic simulations of cool stellar atmospheres with MANCHA
    Context. Three-dimensional time-dependent simulations of stellar atmospheres are essential to study the surface of stars other than the Sun. These simulations...
  • Publication
    Hydrodynamic simulations of cool stellar atmospheres with MANCHA
    Context. Three-dimensional time-dependent simulations of stellar atmospheres are essential to study the surface of stars other than the Sun. These simulations...
  • Publication
    Hydrogenated amorphous carbon grains as an alternative carrier of the 9-13 μm plateau feature in the fullerene planetary nebula Tc 1
    Fullerenes have been observed in several astronomical objects since the discovery of C 60 in the mid-infrared (mid-IR) spectrum of the planetary nebula (PN) Tc...
  • Publication
    H{2}D+ line emission in Proto-Planetary Disks
    Context: Previous studies have indicated that the 372.4 GHz ground transition of ortho-H2D+ might be a powerful probe of Proto-Planetary Disks. The line could...
  • Publication
    Hα and He I absorption in HAT-P-32 b observed with CARMENES. Detection of Roche lobe overflow and mass loss
    We analyze two high-resolution spectral transit time series of the hot Jupiter HAT-P-32 b obtained with the CARMENES spectrograph. Our new XMM-Newton X-ray...
  • Publication
    Hα emission fluxes and lithium abundances of low-mass stars in the young open cluster IC 4665.
    As part of a long term effort to understand pre-main sequence Li burning, we have obtained high resolution spectroscopic observations of 14 late type stars (G0...
  • Publication
    Hα line profiles for a sample of supergiant HII regions. I. The main spectral component
    We present an analysis of the Hα emission line profiles of a sample of giant extragalactic HII regions, selected from among the brightest and most isolated in a...
  • Publication
    Hα line profiles for a sample of supergiant HII regions. II. Broad, low intensity components
    We analyze the broad, low intensity, high velocity components that are seen in the Hα line profiles for a sample of HII regions. These HII regions are chosen...
  • Publication
    Hα spectropolarimetry of RY Tauri and PX Vulpeculae
    Aims: To detect line effects using spectropolarimetry in order to find evidence of rotating disks and their respective symmetry axes in T Tauri stars. Methods...