Summary & work in
progress
X-ray study of a nearby starburst (M83)
and AGN (M81)
Relation between star-formation rate
and hot gas temperature & density
Diffuse emission probes recent
starburst in M83 (107 yrs)
Core-collapse SN remnants &
high-mass X-ray binaries
Diffuse emission in M81 probes older
activity (109 yrs)
Type Ia SN remnants & low-mass X-ray
binaries
Luminosity and colour
distributions of discrete
X-ray sources probe galactic
star formation history
Three
components in 6.4-6.9 keV Fe line emission in M81