In the solar system, a fleet of regular rectangular arrays surrounds the black hole, and in that cold and silent space where you can only see the sea of stars behind, a "stealth" black hole exists quietly. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

During this time, a part of the fleet has established a rudimentary outpost in the solar system, announcing Noah's reoccupation of the solar system. And in this period of time when sovereignty was declared, there was no interference from the outside world, which made the girl's high heart gradually relaxed.

After a certain process of calculation, Noah has been able to determine that this black hole has no spin and no electric charge, it is a Schwarzschild black hole.

The black holes that usually exist in the universe are generally Kerr-Newman black holes with spin, because most superstars that have the ability to form black holes have a certain angular momentum of rotation, and when they collapse into a black hole, they will still retain part of the angular momentum, and due to the presence of no resistance, this part of the angular momentum will not be consumed, and it will give the black hole a permanent spin.

The Schwarzschild black hole is a special case of black holes, it has no spin and no charge, which means that its black hole event horizon and infinite redshift plane will not separate, and there will be no spin magnetic field to interact with the charged particles in the accretion when absorbing matter, and it will not form the most magnificent spectacle of rotating black holes - black hole jets, making it the most difficult to observe type of black hole in the universe.

The only way to observe the Schwarzschild black hole at a distance is only when the Schwarzschild black hole absorbs a large amount of mass, and a part of the material that has not been sucked into the black hole's event horizon collides and heats up at high speed under the action of gravity to release X-ray escape, and this part of the X-ray escape at the edge of the event horizon will bring a soft halo to the black hole in the X-ray band of the spectrum, making it possible for observers to observe the edge of the black hole's event horizon.

In the black hole horizon, no matter what type of black hole it is, no matter what kind of matter escapes, it is a real dark abyss that even light cannot escape, in this range, the gravitational effect has surpassed the strong interaction between elementary particles, matter will be infinitely compressed, atomic nuclei will be crushed, neutrons will also be crushed, even quark-level matter can not survive, matter will be compressed to an unimaginable density, in such a volume is almost infinitely small, the density is almost infinitely large, The distortion of space-time caused by mass makes it impossible for even light to shoot out, which is called a "black hole".

In front of Noah's eyes, there is a Schwarzschild black hole that has swallowed the mass of the entire solar system, and because it does not continue to swallow the mass, this black hole will not have X-ray escape, so that in addition to the terrifying gravity and curvature collapse of the space-time sea, this black hole is as if it does not exist, the light distortion brought by the gravitational lens perfectly makes the light that does not enter the event horizon bypass the black hole, so that Noah can see the sea of stars behind the black hole, but Noah cannot see the black hole.

Even so, the girl had already calculated the mass of the black hole in detail, as well as the extent of its black hole horizon.

In Noah's calculations, the mass of this black hole is about 1.99301*10^30kg, which makes Noah feel very strange, you must know that the total mass of the solar system is about 1.9930*10^30kg, this black hole that swallows the mass of the entire solar system, but has an extra mass of 1.0*10^25kg, which is about equal to the mass of two Earths.

The girl didn't know where the extra mass came from, which made the girl wonder if the principle of the black hole strike was to throw a small "artificial black hole" that had been compressed into the Schwarzschild radius into the strike galaxy, and then let the black hole obtain mass on its own, grow stronger, and eventually swallow the entire galaxy.

This idea made the girl gasp, after all, "artificial black holes" are not completely impossible, according to the Schwarzschild radius, if the Earth is compressed to 9 millimeters, the Earth will become a black hole...... But to compress a star to that extent, the premise is to be able to provide the star with a central gravitational pull at the level of a black hole horizon......

Noah couldn't think of how to produce this kind of gravity, this is not a technical problem, but a logical premise, because there is no matter that will not be destroyed under such gravity, and the effect of gravity is always mutual, which means that if you want to generate gravitational force at the event horizon level of a black hole, you must first have a substance that can resist the gravitational force of the event horizon of a black hole, and build a gravitational generator from such a substance, so that it is possible to make an artificial black hole.

But this forms a paradox, there is no elementary particle structure in the black hole event horizon, because the elementary particles will be crushed under that gravity, and in the process of creating artificial black holes, what should the reaction of the black hole's event horizon-level gravity act on?

Because no matter what it acts on, it will be destroyed by this strong gravitational force to the microscopic level, where the structure of elementary particles does not exist.

Therefore, the technology of creating an "artificial black hole" by infinitely compressing matter, at least in Noah's current cognition, cannot be realized, it has violated the logical premise under the existing theory, if Noah is asked to create an artificial black hole, the girl's only idea is to find a superstar with enough mass to collapse into a black hole, destroy its thermonuclear reaction equilibrium, and induce it to continue to collapse into a "natural" black hole.

However, not to mention that Noah does not have that ability at present, even if he does, there is not much difference between the black hole formed in that way and the natural black hole, and it is impossible to use it as a means of attack.

Therefore, the principle of black hole strike should not exist in Noah's cognition.

However, in the face of the results that have already occurred, it is meaningless to deny it, if the hypothesis of "artificial black holes" is true, based on the compression of the masses of the two Earths to the Schwarzschild radius, this will form a volume of about 0.75 cubic centimeters of matter, which is less than the volume of a person's little finger.

But it's just such a little finger that crushes a galaxy and a civilization.

After the exclamation, Noah began the first formal investigation of the black hole, a large number of faster-than-light spacecraft from the Centaur galaxy 4.2 light-years away, they have obtained a large amount of stellar material from Proxima Centauri, which has been turned into a wreckage nebula under the impact of light particles.

Noah, feed this black hole.

The life of a black hole is not unlimited, especially after it has devoured all the mass around it, it has completely fallen into a quiet black hole, and the characteristics of black holes "only in but not out" are undoubtedly contrary to the basic laws of human physics, because if it only enters and does not out, the mass of the black hole can never be reduced, and the energy can never be reduced, it becomes an "eternal" individual in the universe, and under the control of the law of entropy increase, it will eventually reach the universe of heat death, and there is no eternal individual, which brings conflict.

Humans have found an explanation for the fact that in a "vacuum" universe, according to Heisenberg's uncertainty principle, a pair of positive and negative virtual particles will be created out of thin air in an instant, and then disappear in an instant, in order to conform to the conservation of energy, even outside the black hole horizon. A physicist named Stephen Hawking speculated that if a pair of virtual particles were created outside a black hole, one of them would be attracted to it while the other would escape. If this is the case, the escaping particle gains energy and does not need to be annihilated by the opposite particle, and can escape to infinity as if it were a black hole emitting particles.

This conjecture was later confirmed, this radiation was named "Hawking radiation", because it is to bring energy outward, so it absorbs part of the energy of the black hole, the mass of the black hole will gradually become smaller, disappear, it also brings information outward, so it does not violate the law of information.

This is the "black hole evaporation" caused by Hawking radiation, black holes are losing mass and energy all the time, and although this baby black hole that has swallowed the mass of the entire solar system will have a long lifespan, its life still has an end. Noah fed it and extended its lifespan was only one part, what Noah really wanted was the gravitational field change data that could be observed when the black hole devoured a large amount of matter.

Ships arriving in the solar system began to eject material into the black hole, and in the space illuminated by the outpost, streams of sparkling stellar material were ejected from countless fleets, like streams converging into rivers, gravitationally driven to an unknown region.

After this part of the stellar material approaches the black hole to a certain distance, the gravitational force of the black hole begins to accelerate for them, and under the combined action of gravity and centrifugal force, a part of the stellar matter that is accelerated to near the speed of light before entering the event horizon revolves around the black hole horizon, and together they form a huge sucker to show Noah the range of the black hole's event horizon.

At this time, a large amount of matter accelerated to nearly the speed of light violently collided to form a stream of high-energy charged particles before entering the black hole event horizon, and high-frequency X-rays escaped from the edge of the black hole event horizon.

The sucker of stellar matter revolving around the black hole is like a halo at the moment, surrounding this black object with a soft halo, the volume of the black object is not large, the radius is only about 1.5 kilometers, which is the range of the black hole horizon of the solar system.

In less than a minute when the black hole devoured mass, Noah captured about 10 tons of raw data on the collision of matter at the edge of the event horizon and changes in the gravitational field, and this part of the raw data will become the cornerstone of Noah's future research on the gravitational field and mass of the black hole. (To be continued.) )