Astrophysical: Magnetic fields

  • Publication
    Multiwavelength monitoring of BD +53°2790, the optical counterpart to 4U 2206+54
    We present the results of our long-term monitoring of BD +53°2790, the optical counterpart to the X-ray source 4U 2206+54. Unlike previous studies that classify...
  • Publication
    Naked emergence of an anti-Hale active region. I. Overall evolution and magnetic properties
    Aims: In order to understand the emergence of the active region, we investigate the emerging process and magnetic properties of a naked anti-Hale active region...
  • Publication
    Near-infrared polarimetric adaptive optics observations of NGC 1068: a torus created by a hydromagnetic outflow wind
    We present J' and K' imaging linear polarimetric adaptive optics observations of NGC 1068 using MMT-Pol on the 6.5-m MMT. These observations allow us to study...
  • Publication
    Near-IR internetwork spectro-polarimetry at different heliocentric angles
    Aims:The analysis of near infrared spectropolarimetric data at the internetwork in different regions on the solar surface could offer constraints that reject...
  • Publication
    Net Circular Polarization in Magnetic Spectral Lines Produced by Velocity Gradients: Some Analytical Results
    The net circular polarization in a spectral line due to the combined effect of magnetic fields and velocity gradients is analyzed for a few schematic situations...
  • Publication
    Neural calibration of imaging Stokes polarimeters
    Current polarimetric calibration techniques derive the instrument modulation matrix by numerically fitting an instrumental model to measurements of a set of...
  • Publication
    New generation Stokes inversion codes
    We utilize the concept of sparsity or compressibility to develop an new generation of inversion codes for the Stokes parameters. The inversion code uses...
  • Publication
    NGC 1624-2: a slowly rotating, X-ray luminous Of?cp star with an extraordinarily strong magnetic field
    This paper presents a first observational investigation of the faint Of?p star NGC 1624-2, yielding important new constraints on its spectral and physical...
  • Publication
    Non-LTE Inversion of Stokes Profiles Induced by the Zeeman Effect
    This paper presents a new diagnostic tool for the inference of the thermal, dynamic, and magnetic properties of the solar chromosphere. It consists of a non-LTE...