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Table 6.

Comparison with previous studies.

Study Wavelength Angular resolution Scales q n Re
(μm) (arcsec) (pc2) (pc)
Schödel et al. (2014a,b) 4.5 2 200 × 200 0.71 ± 0.02 2 ± 0.2 4.2 ± 0.4
Fritz et al. (2016) 2.2 1 80 × 80 0.80 ± 0.04 1.5 ± 0.1 7 ± 2
Present work NIR 2.2 0.2 86 × 20.2 0.75 ± 0.01 2.26 ± 0.21 5.36 ± 0.35
Present work MIR 4.5 2 300 × 250 0.66 ± 0.03 1.8 ± 0.1 4.9 ± 0.5

Notes. Fritz et al. (2016) use data with different resolution. We show the resolution for larger distances (R >  2.72 pc) where they used VISTA data. For distances R ≤ 0.8 pc, they use NACO data with an angular resolution of 0.08″. For distances 0.8 pc ≤ R ≤2.72 pc they use (HST) WFC3/IR data with an angular resolution of 0.15″. The present study presents results for stars with magnitudes in the range 11.0 ≤ Ks ≤ 16.0 (ID 3 in Table 3). We show the resolution for larger distances where we use the GALACTICNUCLEUS survey. For distances R ≤ 2 pc, we use NACO data with an angular resolution of 0.05″. We also present the results from using MIR.

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