iI have some trouble to find which spectral lines are the ones in this SNR N49 fitted spectraspectrum. [![X-ray spectra][1]][1]
ThereThey are at 1.3 keV, 1.9keV, 2.5keV, 3.2keV, 3.95keV and maybe at 0.65keV and 6.8keV (aproximatelyapproximately).
theyThey could be H,He He,C C,O O,N N,Ne Ne,Mg Mg,Al Al,Fe Fe,Si Si,S S,Ar Ar,Ca Ca,Ni Ni. [1]: https://i.sstatic.net/P5WVW.png