BeppoSAX observation of Cen X-4 in quiescence

Sergio Campana, Luigi Stella, Sandro Mereghetti, Davide Cremonesi

Published 2000-04-13Version 1

We report on a 61 ks BeppoSAX observation of the soft X-ray transient Cen X-4 during quiescence which allowed to study the source X-ray spectrum from ~ 0.3 keV to ~ 8 keV. A two-component spectral model was required, consisting of a black body with temperature of ~ 0.1 keV and a power law with photon index ~ 2. These values are compatible with earlier ASCA results indicating that Cen X-4 may be stable, within a factor of a few, over a 5 year baseline.