Fig. 4

image

New longitude (left) and latitude (right) profiles of the VHE γ-ray GC ridge emission in unit of excess counts∕arcmin2. The normalised background map and the two point sources HESS J1745−290 and G0.9+0.1 were subtracted from the γ-ray counts map using the fitted model parameters. The longitude profile was integrated over − 0.3° < b < +0.3° and the latitude profile over 359.5° < l < +0.5°. Coloured lines show how the different components of the model reproduce the data. In particular, the LSC accounts for the high latitude residual emission, and the CC accounts for the central residual excess. The Galactic large-scale emission (Abramowski et al. 2014) does not contribute signficantly in this region.

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