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Possible Evidence from the Flaring Activity of Sgr A* for a Star at a Distance of ~3.3 Schwarzschild Radii from the Black Hole

21 Jul 2020, 16:00 UTC
Possible Evidence from the Flaring Activity of Sgr A* for a Star at a Distance of ~3.3 Schwarzschild Radii from the Black Hole
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Elia Leibowitz 2020 ApJ 896 74
Periodic modulation of Sgr A*’s X-ray and near-infrared flaring activity can be interpreted as due to a close-in (within 3–3.5 Schwarzschild radii of the black hole) star on a slightly elliptical precessing orbit.

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