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  • Magnetic fields  (1)
  • magnetic azimuth resolution  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Zeeman-Doppler imaging of solar-type stars: Multi line technique (1996)
    Springer
    Solar physics 164 (1996), S. 417-428 
    Details
    ISSN: 1573-093X
    Keywords: Solar type stars ; Magnetic fields ; Spectropolarimetry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In this work, a multi-line spectropolarimetric detection using an Echelle spectrograph is described. The polarization of Zeeman effect is detected by the use of more than 200 lines observed in the solar type star, HR1099. Using the statistics analysis in a sample of 200 lines, we found on the average a polarization signal of about 3 × 10−4.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00146653
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Field azimuth disambiguation using ambiguity-free currents (1996)
    Springer
    Solar physics 164 (1996), S. 291-302 
    Details
    ISSN: 1573-093X
    Keywords: magnetic azimuth resolution ; vertical currents ; δ-spots
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using the ambiguity-free vertical current defined by Semel and Skumanich (1995) we derive a minimum-current azimuth disambiguation for the observed magnetic field in the active region NOAA 7201. A comparison of such a minimum-current azimuth resolution with those from other extant methods indicates that the resulting resolution, even though found to be limited by noise, is a useful first approximation. A comparison of our minimum current distribution with the currents we derive from an extant disambiguation (Lites et al., 1995) indicates the presence of current discontinuities in the form of linear features near the magnetic neutral line of the associated δ-spot.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00146641
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