Journal: Astronomy and Astrophysics

  • Publication
    Acoustic power absorption and enhancement generated by slow and fast MHD waves. Evidence of solar cycle velocity/intensity amplitude changes consistent with the mode conversion theory
    We used long duration, high quality, unresolved (Sun-as-a star) observations collected by the ground based network BiSON and by the instruments GOLF and VIRGO...
  • Publication
    Active region fine structure observed at 0.08 arcsec resolution
    Context. The various mechanisms of magneto-convective energy transport determine the structure of sunspots and active regions. Aims: We characterise the...
  • Publication
    Activity from the Be/X-ray binary system V0332+53 during its intermediate-luminosity outburst in 2008
    Aims: We present a study of the Be/X-ray binary system V 0332+53 with the main goal of characterizing its behaviour mainly during the intermediate-luminosity X...
  • Publication
    Activity of the Jupiter co-orbital comet P/2019 LD<SUB>2</SUB> (ATLAS) observed with OSIRIS at the 10.4 m GTC
    Context. The existence of comets with heliocentric orbital periods close to that of Jupiter (i.e., co-orbitals) has been known for some time. Comet 295P/LINEAR...
  • Publication
    Adaptive optics near infrared integral field spectroscopy of NGC 2992
    Aims: NGC 2992 is an intermediate Seyfert 1 galaxy showing outflows on kilo parsec scales which might be due either to AGN or starburst activity. We therefore...
  • Publication
    Additional spectra of asteroid 1996 FG3, backup target of the ESA MarcoPolo-R mission
    Context. Near-Earth binary asteroid (175706) 1996 FG3 is the current backup target of the ESA MarcoPolo-R mission, selected for the study phase of ESA M3...
  • Publication
    Advection and dispersal of small magnetic elements in the very quiet Sun
    We track small magnetic structures on very quiet regions (internetwork) of the Sun. We follow the footpoints of small-scale magnetic loops that appear on the...
  • Publication
    Age and helium content of the open cluster NGC 6791 from multiple eclipsing binary members. II. Age dependencies and new insights
    Context. Models of stellar structure and evolution can be constrained by measuring accurate parameters of detached eclipsing binaries in open clusters. Multiple...
  • Publication
    AGILE, Fermi, Swift, and GASP/WEBT multi-wavelength observations of the high-redshift blazar 4C +71.07 in outburst
    Context. The flat-spectrum radio quasar 4C +71.07 is a high-redshift (z = 2.172), γ-loud blazar whose optical emission is dominated by thermal radiation from...