Research Highlight

Activity-related Variation of Solar p-Mode Energy Supply Rates

So far, it was believed that the solar acoustic oscillations are fed with energy at a constant rate throughout the Sun’s magnetic activity cycle. With a careful re-analysis of 25 years of GONG data, I was able the show that this is indeed not the case:

The energy supply rate of solar p-modes is strongly anti-correlated with the level of solar magnetic activity!

The plot shows the weighted average of over 1200 oscillation multiplets’ fractional change of their energy supply rate. Note that there are error bars on the data point, they are just rather small.

These results have been published in Kiefer & Broomhall, 2021, MNRAS 500.3:3095.