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Using the updated oscillation spectrum of  γ  Pegasi, we construct a set of seismic models which reproduce two pulsational frequencies corresponding to the ℓ = 0, p 1  and ℓ = 1, g 1  modes. Then, we single out models which reproduce other well identified modes. Finally, we extend our seismic modelling by a requirement of fitting also values of the complex, nonadiabatic parameter  f  associated to each mode frequency. Such complex asteroseismology of the B‐type pulsators provides a unique test of stellar metallicity and opacities. In contrast to our previous studies, results for  γ  Peg indicate that both opacity tables, OPAL and OP, are equally preferred (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Complex asteroseismology of the hybrid B‐type pulsator γ Pegasi: A test of stellar opacities