Astronomy & Astrophysics

Table 1: Observation log of $\alpha$ Cen, MOS1
Table 2: PSF fit results. Poissonian errors are calculated for the derived ratio.
Table 3: X-ray luminosity in 10²⁷ erg/s of the $\alpha$ Centauri system in the 0.2-2.0 keV band as derived with the different detectors, for the MOS also separated into three energy bands (low: 0.2-0.5, medium: 0.5-0.75, high: 0.75-2.0 keV).
Table 4: Derived X-ray luminosity in 10²⁷ erg/s for the two components $\alpha$ Cen A and B from MOS1 data.