Helioseismic inferences of the solar cycles 23 and 24: GOLF and VIRGO observations

TL;DR

This study uses data from GOLF and VIRGO instruments to analyze the solar cycles 23 and 24, providing insights into their differences and characteristics during their rising phases.

Contribution

It presents a detailed helioseismic analysis of solar cycles 23 and 24 using continuous data from GOLF and VIRGO, highlighting the peculiarities of cycle 24.

Findings

Cycle 24 is weaker than cycle 23.

Differences observed in the rising phases of the two cycles.

Helioseismic data reveals unique features of cycle 24.

Abstract

The Sun-as-a-star helioseismic spectrophotometer GOLF and photometer VIRGO instruments onboard the SoHO spacecraft are collecting high-quality, continuous data since April 1996. We analyze here these unique datasets in order to investigate the peculiar and weak on-going solar cycle 24. As this cycle 24 is reaching its maximum, we compare its rising phase with the rising phase of the previous solar cycle 23.