Figure 1 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 1.

Comparison of the different high angular resolution techniques used to image the GC. The early data has been analyzed with (a) SAA, (b) the original implementation of speckle holography (version 2_1), and (c) the new implementation presented in this work (version 2_2). AO data taken at a similar time is shown in (d). The new speckle holography improves the sensitivity of the final images by up to a factor of three compared to the initial speckle holography.

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