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

  title={Consistency of the Infrared Variability of SGR A* over 22 yr},
  author={Z. Chen and E. Gallego-Cano and T. Do and G. Witzel and A. Ghez and R. Schodel and B. Sitarski and E. Becklin and J. Lu and M. R. Morris and A. Dehghanfar and A. K. Gautam and A. Hees and M. W. Hosek and S. Jia and A. C. Mangian and K. Matthews},
  journal={The Astrophysical Journal},
  • Z. Chen, E. Gallego-Cano, +14 authors K. Matthews
  • Published 2019
  • Physics
  • The Astrophysical Journal
  • © 2019. The American Astronomical Society. All rights reserved. We report new infrared (IR) measurements of the supermassive black hole at the Galactic Center, Sgr A∗, over a decade that was previously inaccessible at these wavelengths. This enables a variability study that addresses variability timescales that are 10 times longer than earlier published studies. Sgr A∗ was initially detected in the near-infrared (NIR) with adaptive optics observations in 2002. While earlier data exists in form… CONTINUE READING
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