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First Mid-infrared Detection and Modeling of a Flare from Sgr A*. II. Mid-infrared Spectral Energy Distribution and Millimeter Polarimetry

  • Authors: Joseph M. Michail, Sebastiano D. von Fellenberg, Garrett K. Keating, Ramprasad Rao, Tamojeet Roychowdhury, S. P. Willner, Nicole M. Ford, Daryl Haggard, Sera Markoff, Alexander Philippov, Bart Ripperda, Sophia Sanchez-Maes, Zach Sumners, Gunther Witzel, Mayura Balakrishnan, Sunil Chandra, Kazuhiro Hada, Macarena Garcia Marin, Mark A. Gurwell, Giovanni G. Fazio, Joseph L. Hora, Braden Seefeldt-Gail, Howard A. Smith

Joseph M. Michail et al 2026 The Astrophysical Journal 997 .

  • Provider: AAS Journals

Caption: Figure 4.

Left: Stokes I, spectral index, debiased linear-polarization percent, and EVPA light curves for Sgr A* (red) and the main gain calibrator J1733 (blue) on 2024 April 6. The flux density of J1733 is shifted up by 2.75 Jy. The gray shaded region denotes the time range where JWST/MIRI was observing Sgr A*. Right: RM variations as a function of time. Native resolution (1 minute) values have been binned to 15 minutes using uncertainty-weighted averages. The SMA light curve is also plotted in the bottom panel.

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