Towards solar activity maximum 24 as seen by GOLF and VIRGO/SPM instruments

TL;DR

This study analyzes the variation of low-degree p-mode parameters measured by GOLF and VIRGO instruments during the unusual solar minimum between cycles 23 and 24, comparing results with other activity proxies to understand solar magnetic activity changes.

Contribution

It provides new insights into the temporal behavior of p-mode parameters during an atypical solar minimum, using combined velocity and intensity measurements from SoHO instruments.

Findings

P-mode parameters showed distinct variation during the solar minimum

Comparison with activity proxies revealed differences in magnetic activity indicators

Results suggest complex interactions between solar interior oscillations and magnetic activity

Abstract

All p-mode parameters vary with time as a response to the changes induced by the cyclic behavior of solar magnetic activity. After the unusual long solar-activity minimum between cycles 23 and 24, where the p-mode parameters have shown a different behavior than the surface magnetic proxies, we analyze the temporal variation of low-degree p-mode parameters measured by GOLF (in velocity) and VIRGO (in intensity) Sun-as-a-star instruments on board SoHO. We then compared our results with other activity proxies.