Open Access

Fig. 5


Spectra of local (30′′ × 30′′) areas. The upper panels show the variation along the line connecting the Arches and Quintuplet clusters, while the lower panels show that along the Galactic plane. For each spectrum, its position is denoted at the top in Galactic coordinates. The solid curves indicate the best-fit model that includes two dust modified blackbody components, the [OIII] and [NII] emission lines, the OH absorption line, and the excess component represented by a Lorentzian function (see text for details).

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

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