ANALYSIS OF HYSTERESIS EFFECT IN p MODE FREQUENCY SHIFTS AND SOLAR ACTIVITY INDICES
نویسندگان
چکیده
Using intermediate degree p mode frequency data sets for solar cycle 22, we find that the frequency shifts and magnetic indices show a “hysteresis” phenomenon. It is observed that the magnetic indices follow different paths for the ascending and descending phases of the solar cycle, the descending path always seems to follow a higher track than the ascending one. However, for the radiative indices, the paths cross each other indicating phase reversal.
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