The effect of spatial smearing on solar Doppler measurements. II. General formulation and application to limb effect and large-scale velocity fields.
Abstract
A general mathematical formulation of the effect of spatial smearing on solar velocity measurements is presented. The variations of the straylight induced error with wavelength and line parameters are discussed. The spatial and time dependence of the error will influence the measurement of solar limb effect and may introduce fictitious large scale velocity fields with amplitudes of the order of a few m/s.
- Publication:
-
Solar Physics
- Pub Date:
- March 1986
- DOI:
- 10.1007/BF00155338
- Bibcode:
- 1986SoPh..107...27A
- Keywords:
-
- Doppler Effect;
- Optical Correction Procedure;
- Solar Rotation;
- Solar Velocity;
- Error Signals;
- Solar Limb;
- Spatial Resolution;
- Velocity Distribution;
- Solar Physics;
- Velocity Field;
- Time Dependence;
- Mathematical Formulation;
- Velocity Measurement;
- Scale Velocity;
- Sun:Limb Effect