Charge-exchange emission in the starburst galaxies M82 and NGC3256

摘要

Charge-exchange (CE) emission produces features which are detectable with thecurrent X-ray instrumentation in the brightest near galaxies. We describe theseaspects in the observed X-ray spectra of the star forming galaxies M82 and NGC3256, from the Suzaku and XMM-Newton telescopes. Emission from both ions (O, C)and neutrals (Mg, Si) is recognised. We also describe how microcalorimeterinstrumentation on future missions will improve CE observations.