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Fig. 4

image

Modelling of the spectrum extracted from the 5′′ circular region around the Sgr A*. Both panels present fits with the distant background. The upper panel shows a model consisting of Galactic absorption (tbabs), thermal bremsstrahlung, and one Gaussian line to account for the iron emission. The lower panel shows a model with three additional Gaussian lines for the S, Ar, and Ca emission.

This figure is made of several images, please see below:

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