Brauer group of moduli of Higgs bundles and connections
  Given a compact Riemann surface $X$ and a semisimple affine algebraic group $G$ defined over $\mathbb C$, there are moduli spaces of Higgs bundles and of connections associated to $(X,\, G)$. We compute the Brauer group of the smooth locus of these varieties. 
David Baraglia, Indranil Biswas and Laura P. Schaposnik
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