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Atomic Orientation in Chromospheric Lines

Published online by Cambridge University Press:  12 April 2016

J. Trujillo Bueno ,
V. Martínez Pillet ,
J. SáNchez Almeida  and
E. Landi Degl’innocenti
J. Trujillo Bueno
Affiliation:
Instituto de Astrofísica de Canarias, 38200 La Laguna, Tenerife, Spain
V. Martínez Pillet
Affiliation:
Instituto de Astrofísica de Canarias, 38200 La Laguna, Tenerife, Spain
J. SáNchez Almeida
Affiliation:
Instituto de Astrofísica de Canarias, 38200 La Laguna, Tenerife, Spain
E. Landi Degl’innocenti
Affiliation:
Dipartamento di Astronomia, Largo E. Fermi 5, 50125 Firenze, Italy

Abstract

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Observations of the Stokes I and V profiles of the Ca II H and K lines in solar magnetic regions are presented. Least-squares fits of dI/dλ to V are obtained and the wavelength variation of the residuals, i. e. V-kdI/dλ, calculated. We find significant symmetric residuals in umbrae, which are in agreement with the effect on the V profiles due to atomic orientation, i.e. with the existence of an unequal population of the Zeeman sublevels with M>0 with respect to those with M<0.

Type
Session 9. Convections and Oscillation in Active Regions
Information
International Astronomical Union Colloquium , Volume 141: The Magnetic and Velocity Fields of Solar Active Regions , 1993 , pp. 526 - 529
Copyright
Copyright © Astronomical Society of the Pacific 1993

References

Laudi Degl’Innocenti, E., 1983, Solar Phys 85, 3 Google Scholar
Laudi Degl’Innocenti, E., 1985, in Theoretical Problems in High Resolution Solar Physics ed. Schmidt, H.U., MPA 212, p.162 Google Scholar
Laudi Degl’innocenti, E., Bommier, V., Sahal-Bréchot, S., 1991, Astr. Ap., 244, 401 Google Scholar
Martínez Pillet, V., García, López, del Toro Iniesta, J.C., Rebolo, R., Vázquez, M., Beckman, J., Char, S., 1990, Ap.J., 361, L81 Google Scholar
Sánchez Almeida, J., Martínez Pillet, V., 1990, in Advancesin Solar Polarimetry, ed. November, L., NSO/SP SW 11, p. 191 Google Scholar
Sánchez Almeida, J., Martínez Pillet, V., Wittmann, A.D., 1991, Solar Phys 134, 1 Google Scholar
Stenflo, J.O., Baur, T.G., Elmore, D.F., Astr. Ap., 84, 60 Google Scholar