Spectra of puffy accretion discs: the kynbb fit

Puffy disc is a numerical model, expected to capture the properties of accretion flow in X-ray black hole (BH) binaries luminous, mildly sub-Eddington state. We fit kerrbb and kynbb spectral models XSPEC synthetic spectra puffy discs, obtained general relativistic radiative magnetohydrodynamic simulations, see if they correctly recover BH spin mass rate assumed simulation. conclude that neither two capable recovering parameters, which highlights necessity develop new, more accurate for luminous regime binaries. propose such should be based on results simulations accretion.