According to Quantum FFF Model sunspots are the same as new physics " electric dark matter black holes"
see: http://vixra.org/pdf/1402.0044v4.pdf
The Impossible Electric Dark Matter Black Hole as the
Origin of New Physics even for Comets like 67P,C-G.
Below: Photometry of KIC8462852 as measured by Kepler data. The analysis reveals a slow but steady decrease in the star’s luminosity for about 1000 days, followed by a period of more rapid decline. Image: Montet & Simon 2016.
http://gizmodo.com/the-so-called-alien-megastructure-just-got-even-more-my-1784883811?utm_medium=sharefromsite&utm_source=Gizmodo_facebook
also: https://www.academia.edu/25189003/Electric_Dark_Matter_Black_Holes_Outside_and_Inside_Galaxies_are_respectively_responsible_for_the_creation_and_contraction_of_a_Cyclic_Universe
see also:
How to kill a galaxy.
"Red Geysers " --Previously Unknown Phenomenon Discovered Killing Off Galaxies of the Universe
http://bigbang-entanglement.blogspot.nl/2016/07/a-new-black-hole-paradigm-supported-by.html
How we could interpret such a process of star destruction by over sized sunspots?
According to Quantum FFF model, new paradigm black holes repel Fermions if there are no other black hole nearby.
In case of galaxy centers and older stars crowded with sunspot BHs , those BHs could probably change into Fermion eating black holes by the complex polarization of the Higgs vacuum lattice.
Fermion repelling BHs are supposed to repel Fermions by their polarization potential of propeller shaped Fermions.
http://vixra.org/pdf/1502.0086v3.pdf