Journal: Astronomy and Astrophysics

  • Publication
    AGN-host galaxy connection: morphology and colours of X-ray selected AGN at z ≤ 2
    Context. The connection between active galactic nuclei (AGN) and their host galaxies has been widely studied and found to be of great importance for providing...
  • Publication
    ALMA high spatial resolution observations of the dense molecular region of NGC 6302
    Context. The mechanism behind the shaping of bipolar planetary nebulae is still poorly understood. It is becoming increasingly clear that the main agents must...
  • Publication
    ALMA images the many faces of the <ASTROBJ>NGC 1068</ASTROBJ> torus and its surroundings
    Aims: We investigate the fueling and the feedback of nuclear activity in the nearby (D = 14 Mpc) Seyfert 2 barred galaxy NGC 1068 by studying the distribution...
  • Publication
    ALMA imaging of C2H emission in the disk of NGC 1068
    Aims: We study the feedback of star formation and nuclear activity on the chemistry of molecular gas in NGC 1068, a nearby (D = 14 Mpc) Seyfert 2 barred galaxy...
  • Publication
    Alpha element abundances and gradients in the Milky Way bulge from FLAMES-GIRAFFE spectra of 650 K giants
    Aims: We present the analysis of the [α/Fe] abundance ratios for a large number of stars at several locations in the Milky Way bulge with the aim of...
  • Publication
    Ambipolar diffusion in the Bifrost code
    Context. Ambipolar diffusion is a physical mechanism related to the drift between charged and neutral particles in a partially ionized plasma that is key to...
  • Publication
    Ambipolar diffusion: Self-similar solutions and MHD code testing. Cylindrical symmetry
    Context. Ambipolar diffusion is a process occurring in partially ionised astrophysical systems that imparts a complicated mathematical and physical nature to...
  • Publication
    Ambipolar filamentation of turbulent magnetic fields: a numerical simulation
    We present the results of a 2-D, two fluid (ions and neutrals) simulation of the ambipolar filamentation process, in which a magnetized, weakly ionized plasma...
  • Publication
    Ammonia-methane ratios from H-band near-infrared spectra of late-T and Y dwarfs
    Aims: Our goals are to investigate the relative absorption strengths of ammonia and methane using low-resolution H-band (1.5−1.7 microns) spectra obtained in...