The above graph depicts solar x-ray activity for Dec 15 through Dec 18 UTC. There are four distinct solar x-ray spikes; three of them are on Dec 16, and the first of the series in on Dec 15 at about 14:00 to 15:00 hrs. According to my research, these spikes indicate a gravitational wave passed through the solar system at the indicated times.
Usually, the spikes rise and fall so quick that they are as thin as the last spike on Dec 17. The slow fall times of the gravitational wave spikes seems to indicate the Sun is becoming thicker, like molasses. This should coincide with lower solar surface temperatures. Hopefully, someone is measuring solar surface temperature right now. If the solar surface temperature is dropping, that might explain the slowly decaying solar x-ray spikes.
I would point out that slow decays also occur during major X class flares and during solar maximum. However, those slow decays are due to excessively strong magnetic fields. The present slow decay rates seem to have a different cause.
Dave





