Comparison of the X-ray and the γ-ray excesses in the GC. XMM-Newton Fe XXV profile (black line) adopted from Fig. 2 for negative latitudes. With red points we show the GC excess intensity at 2 GeV as measured by various studies (Hooper & Goodenough 2011; Boyarsky et al. 2011; Gordon & Macías 2013; Abazajian et al. 2014; Daylan et al. 2016). The blue dotted line represents the emission from dark matter annihilation for a Navarro–Frenk-White distribution (NFW; Navarro et al. 1997), which best represents the γ-ray excess data. Both red points and blue points associated with the γ-ray excess are normalised along the y-axis to match the X-ray profile for illustration purposes. For more details see Murgia (2020) and their Fig. 2.