
%0 Journal Article
%A Kuncic, Zdenka 
%A Wu, Kinwah 
%A G. Cullen, Jason 
%T Compton Scattering of Fe K&#945; Lines from Accreting White Dwarfs
%J Publications of the Astronomical Society of Australia
%D 2005/02/10
%V 22
%N 1
%P 56-61
%K accretion &#8212; line: profiles &#8212; scattering &#8212; binaries: close &#8212; white dwarfs &#8212; X-rays
%R https://doi.org/10.1071/AS04071
%U https://www.publish.csiro.au/paper/AS04071 
%X Compton scattering in the bulk accretion flow of the accretion column in magnetic cataclysmic variables can significantly shift photon energies in the X-ray emission lines resulting from accretion shocks. In particular, Compton recoil can potentially broaden the 6.7 and 6.97 keV Fe K&#945; emission lines produced in the post-shock region, and contaminate the fluorescent 6.4 keV neutral Fe K&#945; line reflected off the white dwarf surface. We present nonlinear Monte Carlo simulations demonstrating these effects, and we discuss the interpretation of observed Fe K&#945; linewidths in magnetic cataclysmic variables in light of these new results. The implications for other accreting compact objects are also discussed. 
