Measurements at microwave wavelengths of Sgr A*, which is popularly called a “black hole”, indicate that its radiation comes from a region smaller than its event horizon. This proves that it cannot be a black hole since these measurements show it to be luminous rather than black. The event horizon for Sgr A* is estimated to have a Schwarzschild radius (Rs) equal to 0.08 AU which is gravitationally lensed up to a size of 0.42 AU (5.2 Rs), or about the radius of Mercury’s orbit. The graph below, prepared by H. Falcke, indicates the size of Sgr A* as observed at increasingly short wavelengths. The best estimate of size currently is the observation at 220 GHz, since measurements at higher frequencies do not give an accurate size. As seen in the graph, the radius of the Galactic core is shown to be only 0.6 Schwarzschild radii (Rs) at this observation frequency, hence over 8 times smaller than the purported black hole event horizon. Since this is radiation we are seeing and not blackness, these measurements apparently show that Sgr A* is not a black hole. Rather the results support the prediction of subquantum kinetics that Sgr A* is a mother star that continuously generates and expels matter and energy.
Astrophysicists hold on to their belief that Sgr A* is a black hole, claiming that the detected microwave emission is coming from gas positioned in front of Sgr A*. The problem though, is that this gas does not appear to be orbiting the core; see Broderick, et al., 2018, at the bottom of p. 12. Since all matter around Sgr A* necessarily orbits it at high velocity, this indicates that what we are seeing comes from the surface of Sgr A*. Hence because the core is radiating energy, it cannot be a black hole. When they have no other recourse, astrophysicists will probably refer to this as Hawking radiation. But in reality what they are seeing is a mother star, as conceived in subquantum kinetics. All this has been discussed before in the Starburst Superwave Forum. But the conclusions are the same.
There are others who also believe that black holes do not exist, like physicists Albert Einstein, Phillip Morrison, Laura Mersini-Houghton, J-P Petit, and Stephen Hawking (partially). In the case of Hawking, in 2013 he announced that black holes can emit radiation, which physicists now call Hawking radiation. So what would you call this radiation coming from mother stars, LaViolette radiation? I doubt it, but when the GC goes active, such radiation would more appropriately be called a galactic superwave, and pretty shortly we are going to see it shining in all its glory. Here is further discussion of the subject of the non existence of black holes.
One other important development that is in the news is the discovery that Sgr A* has a jet pointing directly towards us; also see Issaoun, 2019. In other words, the Galactic core is ejecting matter and energy towards us; i.e., there is an outflow directed towards us. This is essentially a confirmation of the superwave scenario, namely that supermassive galactic cores can spew out matter and energy, and at times at prodigious rates. But actually, what they are seeing is not a jet, but an isotropic outflow. From whatever direction the Galactic center is viewed, material will be seen coming towards the viewer. We cannot see the flow emitted in other directions since we are not aligned with it. The reason we don’t see columnated jets in the other directions is because the flow is isotropic and not bundled into jets. One other thing to consider is that the synchrotron emission coming from Sgr A* is circularly polarized. This indicates that the radiation is being produced by cosmic rays coming directly towards us. Again, this radiation will appear circularly polarized from whatever direction one views the Galactic center. More information on this is given in the following Starburst press release.