JWST detected the first mid-infrared flare from Sgr A*, whose spectral index reddened during the flare, consistent with synchrotron cooling of electrons in a roughly 40 to 70 Gauss magnetic field.
In the absence of astrometric or polarimetric measurements of the flare, the orbital parameters of the flare are poorly constrained
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First mid-infrared detection and modeling of a flare from Sgr A*
JWST detected the first mid-infrared flare from Sgr A*, whose spectral index reddened during the flare, consistent with synchrotron cooling of electrons in a roughly 40 to 70 Gauss magnetic field.