http://arxiv.org/abs/2104.13152
In 3 previous papers I showed that the series of the midpoints of the times of all the X-ray flares of Sgr A* that were detected so far harbors a statistical trend termed pacemaker regularity. It means that X-ray flares are detected more frequently around time points that are subset of a periodic grid on the time axis of period P_X=0.1032 day=149 min. The series of the times of detection of the peaks of NIR flares of the object are also regulated by a pacemaker with a period P_IR=0.028 day=41 min. Here I show that the series of the midpoints of the times of recorded NIR flare is also regulated by a pacemaker of the period P_IRM=0.039 day=56min. The 2 pacemakers found in the previous papers were interpreted as signals of a star that revolves around the blackhole of Sgr A* in orbit with a mean radius of ~3.2 Schwarzschild radii of the blackhole, here corrected to ~3.13. The finding of the period of the third pacemaker is consistent with the suggested revolving star model. Here I present the specific orbit of the star as well as a plausible description of its sidereal rotation. The model also implies that the star has an unusual internal structure. I show that the discovery of the GRAVITY collaboration of motion of hot spots at distances from the blackhole that are of the order of very few Schwarzschild radii of it may well be understood within the context of the revolving star model.
E. Leibowitz
Wed, 28 Apr 21
54/60
Comments: ApJ, accepted
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