Stellar magnetic field measurements utilizing infrared spectral lines

1985 ◽  
Vol 297 ◽  
pp. 710 ◽  
Author(s):  
Ph. Gondoin ◽  
M. S. Giampapa ◽  
J. A. Bookbinder
Keyword(s):  
Magnetic Field ◽  
Field Measurements ◽  
Spectral Lines ◽  
Magnetic Field Measurements ◽  
Infrared Spectral

scholarly journals Spectropolarimetry with PEPSI at the LBT: accuracy vs. precision in magnetic field measurements

2008 ◽  
Vol 4 (S259) ◽  
pp. 663-664
Author(s):  
Ilya Ilyin ◽  
Klaus G. Strassmeier ◽  
Manfred Woche ◽  
Axel Hofmann
Keyword(s):  
Magnetic Field ◽  
Field Measurements ◽  
Spectral Lines ◽  
Stokes Parameters ◽  
Limiting Factors ◽  
Magnetic Field Measurements

AbstractWe present the design of the new PEPSI spectropolarimeter to be installed at the Large Binocular Telescope (LBT) in Arizona to measure the full set of Stokes parameters in spectral lines and outline its precision and the accuracy limiting factors.

scholarly journals Magnetic Fields Measured with the 10830 Å HeI Line

1971 ◽  
Vol 43 ◽  
pp. 279-288 ◽  
Author(s):  
J. Harvey ◽  
D. Hall
Keyword(s):  
Fine Structure ◽  
Magnetic Fields ◽  
Near Infrared ◽  
Active Regions ◽  
Field Measurements ◽  
Spectral Lines ◽  
Magnetic Field Measurements ◽  
Infrared Spectral ◽  
Polarity Reversals ◽  
Absorption Features

Several advantages of near infrared spectral lines for magnetic field measurements are listed. In particular, the 10830 Å multiplet of HeI is well suited for observations of chromospheric magnetic fields.New photoelectric spectroheliograms made with the 10830 Å line reveal a large amount of filamentary fine structure in active regions. This fine structure has important consequences on the interpretation of 10830 Å magnetograms. Except for an association of 10830 Å disk filaments with polarity reversals there is little correlation between absorption features and the 10830 Å longitudinal field. Comparisons of chromospheric and photospheric observations show that the chromospheric field is spatially more diffuse and weaker than the photospheric field.

Magnetic field measurements in space

1963 ◽  
Vol 1 (3) ◽  
pp. 399-414 ◽  
Author(s):  
Laurence J. Cahill
Keyword(s):  
Magnetic Field ◽  
Field Measurements ◽  
Magnetic Field Measurements
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