Answers are grounded in this paper and cite their sources.
Context. The near-infrared (NIR) counterpart of Sagittarius A* (SgrA*) at the position of the 4 × 106 M⊙ supermassive black hole at the center of the Milky Way has strongly varying flux densities. The broad-band near-infrared spectral index is an essential parameter to determine the underlying emission mechanism for the observed flare emission.
No takes yet. Share an insight, caveat, or question.
Bremer et al. (2011) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: