Computer Science
Scientific paper
Aug 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000kfnt...16..230g&link_type=abstract
Kinematika i Fizika Nebesnykh Tel, vol. 16, no. 3, p. 230-240
Computer Science
Scientific paper
Measurements of velocity field in the Fe I λ 527.0 nm and Mg I λ 517.3 nm lines and longitudinal magnetic field in the Fe I λ 525.3 nm line over the umbrae of four spots were used to study the structure of both fields. We reconstructed all three components of both the magnetic and velocity field vectors from their line-of-sight components. The velocities are small in the regions of the Fe I λ 527.0 nm and the Mg I λ 517.3 nm line formation. The average angles between the magnetic field vector and the velocity field vectors calculated from the observations in the Fe I λ 527.0 nm and Mg I λ 517.3 nm are practically the same (540 and 520). The vertical gradient of the magnetic field calculated from the condition divH = 0 and the magnetic field components is approximately -0.03 mT/km. The beam angle and the pitch of the helix of magnetic field lines and the vertical electric current are estimated.
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