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Table 3

High-ionisation lines detected in the XMM-Newton and Chandra spectrum.

Line λ [Å] E [keV] Significance
Mg XI 9.1688 1.3522 6.5σ
Ne IX 13.447 0.9220 3.9σ
Fe XVII 15.012 0.8259 10σ
O VII Heα 21.590 0.5743 4.6σ
O VII Heβ 18.626 0.6657 3.1σ
O VIII Lyα 18.967 0.6537 8σ
O VIII Lyβ 16.005 0.7747 11σ
C VI 33.734 0.3675 <1σ
N VI 28.788 0.4307 < 1σ
N VII 24.779 0.5004 1.8σ

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