Spectroscopic characterization of the known O-star population in Cygnus OB2. Best-fitting models

Appendix of the article 'Spectroscopic characterization of the known O-star population in Cygnus OB2. Evidence of multiple star-forming bursts'. We present the FASTWIND best-fitting models to the observed spectra for the Cygnus OB2 O-type population analyzed in the article Berlanas et al. 2020, A&A, in press. The observed spectra (in black) is overplotted to the best-fitting model (in red) resulting from the spectroscopic analysis. He I, He II, and H lines are indicated with solid, dashed and dotted short vertical lines, respectively.