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First Mid-infrared Detection and Modeling of a Flare from Sgr A*

Authors: Sebastiano D. von Fellenberg, Tamojeet Roychowdhury, Joseph M. Michail, Zach Sumners, Grace Sanger-Johnson, Giovanni G. Fazio, Daryl Haggard, Joseph L. Hora, Alexander Philippov, Bart Ripperda, Howard A. Smith, S. P. Willner, Gunther Witzel, Shuo Zhang, Eric E. Becklin, Geoffrey C. Bower, Sunil Chandra, Tuan Do, Macarena Garcia Marin, Mark A. Gurwell, Nicole M. Ford, Kazuhiro Hada, Sera Markoff, Mark R. Morris, Joey Neilsen, Nadeen B. Sabha, Braden Seefeldt-Gail

Sebastiano D. von Fellenberg et al 2025 The Astrophysical Journal Letters 979 .

Provider: AAS Journals

Caption: Figure 4.

Observed light curves with model fit. Points show the observed data, and solid lines show the predictions of the simple model described in the text. (A) 220 GHz data. (B) MIR data. The four yellow to red lines show the best-fit model predictions for each channel as labeled. The black dashed line shows the modeled Doppler boosting and deboosting due to the orbital motion of the emission region. The dotted line shows the modeled Gaussian injection curve of power-law electrons. The flare phases described in the text are indicated at the bottom.

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