Journal: Astronomy and Astrophysics

  • Publication
    Axisymmetrical gas inflow in the central region of NGC 7331
    New Integral Field Spectroscopy of the central region of NGC 7331 reveals strong Hα emission in the well-known CO and HI ring of NGC 7331. The [NII]/Hα ratio...
  • Publication
    Azimuthal dependence of the density distribution in outer galactic discs accreting intergalactic flows
    Aims: The amplitude and scaleheight of the Galactic gas disc density are not axisymmetric against expectations in a self-gravity axisymmetric disc. However...
  • Publication
    B field in OB stars (BOB): The outstandingly strong magnetic field in the evolved He-strong star CPD -62° 2124
    The origin and evolution of magnetism in OB stars is far from being well understood. With approximately 70 magnetic OB stars known, any new object with unusual...
  • Publication
    B fields in OB stars (BOB). Detection of a strong magnetic field in the O9.7 V star HD 54879
    The number of magnetic stars detected among massive stars is small; nevertheless, the role played by the magnetic field in stellar evolution cannot be...
  • Publication
    B fields in OB stars (BOB): Concluding the FORS 2 observing campaign
    Aims: The B fields in OB stars (BOB) Collaboration is based on an ESO Large Programme to study the occurrence rate, properties, and ultimately the origin of...
  • Publication
    B fields in OB stars (BOB): Low-resolution FORS2 spectropolarimetry of the first sample of 50 massive stars
    Within the context of the collaboration "B fields in OB stars" (BOB), we used the FORS2 low-resolution spectropolarimeter to search for a magnetic field in 50...
  • Publication
    B fields in OB stars (BOB): on the detection of weak magnetic fields in the two early B-type stars β CMa and ɛ CMa. Possible lack of a "magnetic desert" in massive stars
    Only a small fraction of massive stars seem to host a measurable structured magnetic field, whose origin is still unknown and whose implications for stellar...
  • Publication
    B-type supergiants in the Small Magellanic Cloud: rotational velocities and implications for evolutionary models
    High-resolution spectra for 24 SMC and Galactic B-type supergiants have been analysed to estimate the contributions of both macroturbulence and rotation to the...
  • Publication
    B-type supergiants in the SMC: Chemical compositions and comparison of static and unified models
    High-resolution UCLES/AAT spectra are presented for nine B-type supergiants in the SMC, chosen on the basis that they may show varying amounts of nuclear...