General relativistic effects and the near-infrared variability of Sgr A*
S. D. von Fellenberg,
G. Witzel,
M. Bauboeck
et al.
Abstract:A systematic study, based on the third-moment structure function, of Sgr A*'s variability finds an exponential rise time, $ obs minutes $, and decay time, $ obs minutes $. This symmetry of the flux-density variability is consistent with earlier work, and we interpret it as being caused by the dominance of Doppler boosting, as opposed to gravitational lensing, in Sgr A*'s light curve. A relativistic, semi-physical model of Sgr A* confirms an inclination angle of $i The model also shows that the emission of th… Show more
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