Charge-exchange emission in the starburst galaxies M82 and NGC3256?

摘要

Charge-exchange (CE) emission produces features which are detectable with the current X-ray instrumentation in the brightest near galaxies. We describe these aspects in the observed X-ray spectra of the star forming galaxies M82 and NGC 3256, from the Suzaku and XMM-Newton telescopes. Emission from both ions (O, C) and neutrals (Mg, Si) is recognised. We also describe how microcalorimeter instrumentation on future missions will improve CE observations (? 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)