Non-LTE line formation in a magnetic field. II. The influence of noncoherent scattering on line contours
Journal Article
·
· Solar Phys., v. 31, no. 2, pp. 291-298
OSTI ID:4385221
Theoretical line contours calculated for fixed values of the line constants and a given model atmosphere show an increase of the stokes parameters Q, U, and V but a decrease of I if the portion of noncoherent scattering increases. These effects increase from the center of the solar disk to the limb. The action of scattering may be approximately simulated in LTE contours by increasing the gradient of the source function and fitting in this way theoretical contours to observed ones. There remains, however, the effect of V- reversal near the line core, which is caused by anomalous dispersion and is abnormally increased by scattering. (auth)
- Research Organization:
- Zentralinstitut fuer Astrophysik, Potsdam, Ger.
- NSA Number:
- NSA-29-011034
- OSTI ID:
- 4385221
- Journal Information:
- Solar Phys., v. 31, no. 2, pp. 291-298, Other Information: Orig. Receipt Date: 30-JUN-74
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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