The integrated magnetic field of the Sun as seen by GOLF on board SOHO

An objective of the GOLF experiment (Global Oscillations at Low Frequencies ) on-board the SOHO (Solar and Heliospheric Observatory) space mission was to measure the line-of-sight component of the disk-averaged magnetic field of the Sun. In this paper, a theoretical study of this observable is presented. The new ly developed techniques are tested using simulated data series based on the observation;of this experiment, and the sensitivity of GOLF to magnetic me asurements is calculated. An average solar mean magnetic field of 0.120 +/- 0.002 G has been found corresponding to the minimum of solar activity by a nalyzing 26 days of full GOLF data. The power spectrum of this field is cal culated and the main characteristics are described.