  The presence of two distinct spectral states has previously been reported for
Cen X-3 on the basis of RXTE/ASM observations. Triggered by this result, we
investigated the spectral properties of the source using the larger amount of
X-ray data now available with the aim to clarify and interpret the reported
behavior. To check the reported results we used the same data set and followed
the same analysis procedures as in the work reporting the two spectral states.
Additionally, we repeated the analysis using the enlarged data sample including
the newest RXTE/ASM observations as well as the data from the MAXI monitor and
from the INTEGRAL/JEM-X and ISGRI instruments. We could not confirm the
reported presence of the two spectral states in Cen X-3 either in
