Preliminary performance of a 4-point resonance scattering experiment to access long-period global oscillations from space
The first data of a SOHO-GOLF type instrument are presented. The slopes of the solar sodium lines profiles D1 and D2 and their variations with the excursion of the working point are shown. Two methods of determining the oscillation velocity are compared, one usually used with two-point spectrometers and one using the four-point information. It is
Boumier, P. et al.
Fecha de publicación:
0
1991