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How does rich-neutron matter and poor-neutron matter distribute inside a spiral galaxy?

Spiral galaxies have a disklike shape with a black hole at their centers. Similar to the way in which rich-neutron matter and poor-neutron matter is distributed in a cluster of stars, the percentage of rich-neutron matter in the inner part of a spiral galaxy is higher than that in its outer part. The percentage of rich-neutron matter inside a galaxy is believed, by Hardy Newman, to be highest inside its central black hole. The percentage of rich-neutron matter then decreases in the stars that are further away from the central black hole.

The reverse also holds true. The percentage of poor-neutron matter is lowest inside the central black hole. And when it comes further away from the central black holes, the percentage of poor-neutron matter increases. It then reaches to the maximum at the edge of the spiral galaxy. In this way, the entire spiral galaxy behaves like a soccer ball in which the poor-neutron matter in the outer part of the spiral galaxy acts like the soccer ball casing that always tries to contract the galaxy and the rich-neutron matter in the inner part of the spiral galaxy acts like the compressed air inside the soccer ball that always tries to expand the galaxy. The tendency that prevails, contraction or expansion, will define whether the spiral galaxy is contracting or expanding respectively.

This happens to even the galactic spiral arms. Stars at the edge of a spiral arm contains more poor-neutron matter than rich-neutron matter and stars in the inner part of the spiral arm contain more rich-neutron matter than poor-neutron matter. Because stars at the edge of the spiral arm contains more poor-neutron matter, attraction force prevails and they acts like the skin of the spiral arm and protect the inner stars of the spiral arm.

The general rule of matter distribution is that a star that is in the outer part of the galaxy contains less percentage of rich-neutron matter than a star that is in the inner part of the galaxy. Hardy Newman believes that stars are born by their central black holes. If a star is born by its central black hole and it then moves to the outer edge of the galaxy, on the way it moves from the central black hole to the edge of the galaxy, its percentage of rich-neutron matter must reduce in accordance with this general rule of matter distribution.

If a star is initially born with low percentage of rich-neutron matter, it will falls back into its central black hole because the attraction force that the black hole exerts on it prevails against the repulsion force. If that star moves to the edge of the galaxy with high percentage of rich-neutron matter in it, it will continue to move further away from the central black hole because repulsion force that the central black hole exerts on it prevails against the attraction force. It will not stop moving away from the central black hole until its percentage of rich-neutron matter is lowered to a specific value.

A black hole can be "the mother" of stars if the repulsion force that the black hole exerts on the stars prevails against the attraction force. The reverse also holds true. A black hole can also be a "star eater" if the attraction force that the black hole exerts on its surrounding stars prevails against the repulsion force.

This also explains why binary star systems appear only in the outer parts of spiral galaxies, because these stars are far away from their central black holes, and therefore, contain less rich-neutron matter. So, the attraction force among them prevails against the repulsion force and if these stars are close enough to each other like those in binary star systems, they must revolve around each other to keep themselves from falling into each other.

Meanwhile, stars in the inner part of the spiral galaxy contain more rich-neutron matter than poor-neutron matter. So, repulsion force among them prevails against attraction force. It is impossible for them to revolve around each other because the interactive force among them are mostly repulsion force.

The answer to the question in the title is detailed in a video titled: "the general rule of matter distribution in the Universe", posted on the Youtube channel: Newman Online College and embedded in this page as follow:

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