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Fig. 2.

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Identification of G2/DSO in the H+K continuum, as proposed in Peißker et al. (2020a, 2021a), observed with SINFONI in 2012. The left plot represents the H+K continuum view of a collapsed SINFONI data cube, which is used as an input for the smooth subtract algorithm. The middle plot shows the result of smoothing the left image and subtracting it from itself. The H+K-band continuum position of G2/DSO is consistent with the L-band detection shown in Gillessen et al. (2013). The right plot shows the Doppler-shifted line map detection of G2/DSO at about 2.18 μm. The orbit is adapted from Peißker et al. (2021a) and the astrometric position of G2/DSO is consistent with the results presented Peißker et al. (2020a), where we used the Lucy–Richardson deconvolution algorithm to perform the high-pass filtering (Lucy 1974; Peißker et al. 2022). The H+K-band continuum detection of G2/DSO demonstrates the superiority of this data processing method. Here, north is up and east is to the left.

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