  We report results on the quark spectral function in the Landau gauge at
finite temperature determined from its Dyson-Schwinger equation. Compared to
earlier quenched results this study encompasses unquenched $N_f=2+1$ fermion
flavors in the medium. For the reconstruction of real-time spectra we deploy a
recent Bayesian approach (BR method) and develop a new prior in order to better
assess the inherent systematic uncertainties. We identify the quark
quasi-particle spectrum and analyze the (non-)appearance of zero modes at or
around the pseudo-critical temperature. In both, the fully unquenched system
and a simpler truncation using a model for the gluon propagator we observe a
characteristic three-peak structure at zero three-momentum. The temperature
dependence of these structures in case of the gluon propagator model is
different than observed in previous studies. For the back-coupled and
unquenched case we find interesting modifications at and around the
pseudo-critical transition temperature.
