CC BY-NC 2.0 UnportedKühnel, M.Müller, S.Kreykenbohm, I.Fürst, F.Pottschmidt, K.Rothschild, R.E.Caballero, I.Grinberg, V.Schönherr, G.Shrader, C.Klochkov, D.Staubert, R.Ferrigno, C.Torrejón, J.-M.Martínez-Núñez, S.Wilms, J.2020-09-252020-09-252014https://doi.org/10.34657/4355https://oa.tib.eu/renate/handle/123456789/5726In a former publication, we have analyzed the transient neutron star X-ray binary GRO J1008-57 using all available RXTE-, Swift-, and Suzaku-data. As we have found, the source's spectral components, i.e., a power-law with high exponential cutoff and a black-body, are strongly correlated with the hard X-ray flux (15-50 keV). We update the analytical description of these dependence, including a change in the photon index behaviour from a flat to a logarithmic function. The flux, where the change occurs, is consistent with the onset of the black-body emission. Thus, a change of the accretion state always occurs in GRO J1008-57 at a particular flux level.enghttps://creativecommons.org/licenses/by-nc/2.0/530GRO J1008–57black-bodypower-lawArticle