Journal: Astronomy and Astrophysics

  • Publication
    Detection of the white dwarf and the secondary star in the new SU UMa dwarf nova HS 2219+1824
    We report the discovery of a new, non-eclipsing SU UMa-type dwarf nova, HS 2219+1824. Photometry obtained in quiescence (V≈17.5) reveals a double-humped light...
  • Publication
    Detection of the [C I] λ8727 emission line. Low-ionization structures in NGC 7009
    We report the first spatially resolved detection of the near-infrared [C I] λ8727 emission from the outer pair of low-ionization structures in the planetary...
  • Publication
    Detection of transit timing variations in excess of one hour in the Kepler multi-planet candidate system KOI 806 with the GTC
    Aims: We report the detection of transit timing variations (TTVs) well in excess of one hour in the Kepler multi-planet candidate system KOI 806. This system...
  • Publication
    Detection of very high energy gamma-ray emission from the gravitationally lensed blazar QSO B0218+357 with the MAGIC telescopes
    Context. QSO B0218+357 is a gravitationally lensed blazar located at a redshift of 0.944. The gravitational lensing splits the emitted radiation into two...
  • Publication
    Detection of very-high energy γ-ray emission from NGC 1275 by the MAGIC telescopes
    We report on the detection of very-high energy (VHE, E > 100 GeV) γ-ray emission from NGC 1275, the central radio galaxy of the Perseus cluster of galaxies. The...
  • Publication
    Detections of solar-like oscillations in dwarfs and subgiants with Kepler DR25 short-cadence data
    During the survey phase of the Kepler mission, several thousand stars were observed in short cadence, allowing for the detection of solar-like oscillations in...
  • Publication
    Determination of field strengths in the quiet Sun
    The magnetism in the quiet regions of the solar photosphere carries information on the dynamo processes and its interaction with the convection of the outer...
  • Publication
    Determination of the cross-field density structuring in coronal waveguides using the damping of transverse waves
    Context. Time and spatial damping of transverse magnetohydrodynamic (MHD) kink oscillations is a source of information on the cross-field variation of the...
  • Publication
    Determination of the pattern speed in the grand design spiral galaxy NGC 4321.
    Measurement of pattern speeds has been an observational imperative in the last years since a clear determination of the corotation resonance radius will give...