Figure 4 from Consistency of the Infrared Variability of SGR A* over 22 yr

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Consistency of the Infrared Variability of SGR A* over 22 yr

Authors: Zhuo Chen, E. Gallego-Cano, T. Do, G. Witzel, A.M. Ghez, R. Schödel, B.N. Sitarski, E.E. Becklin, J. Lu, M.R. Morris, A. Dehghanfar, A.K. Gautam, A. Hees, M.W. Hosek, S. Jia, A.C. Mangian, and K. Matthews

2019 The Astrophysical Journal Letters 882 L28.

Provider: AAS Journals

Caption: Figure 4.

Astrometric uncertainty as a function of source brightness. While the brightest sources have an astrometric uncertainty of 1 mas, at the average speckle holography detection limit of K ∼17 mag, shown as the dashed line, the astrometric uncertainty is typically 10 mas.

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