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Table 9

Lines used to calibrate the wavelength scale and LSF.

Line λLaboratory RGS1 LSF RGS2 LSF

Mg xii Lyα 8.41 no no
Ne x Lyα 12.134 no yes
Fe xvii 15.015 yes yes
Fe xvii 16.777 yes no
O viii Lyα 18.969 yes yes
O vii w 21.602 yes no
O vii 22.101 yes no
N vii 24.781 no yes
C vi Lyα 33.736 yes yes

Notes. The last two columns indicate which lines have also been used for the separate RGS1 and RGS2 LSF calibrations.

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