Why are pulsars more scary than black holes in the universe?

Pulsar. It is a neutron star that rotates at high speed, because it constantly emits electromagnetic pulses.

signal. Pulsars are known for their small scale, strong gravitational pull, strong magnetic field, and strong electromagnetic radiation.

And famous. At the end of the evolution of the star, it lacks the raw materials for nuclear reaction to continue burning, and the internal radiation pressure decreases, and it gradually collapses due to its own gravitational effect. Stars with insufficient mass (about several times the mass of the Sun) collapse and rely on electron degeneracy pressure to compete with gravity and become white dwarfs.

In a star with a mass greater than that, electrons are pressed into the nucleus.

Neutrons are formed, when the star relies on the degenerate pressure of neutrons to maintain balance with gravity, which is a neutron star.

A typical neutron star has a radius of only a few kilometers to a dozen kilometers, but its mass is between 1-2 times the mass of the Sun, so its density can reach hundreds of millions of tons per cubic centimeter. As the angular momentum is conserved when the star collapses.

After collapsing into a neutron star with a small radius, the rotation speed tends to be very fast. And because the magnetic axis of the stellar magnetic field is usually not parallel to the axis of rotation, some even reach an angle of 90 degrees, and electromagnetic waves.

It can only be emitted from the position of the magnetic poles, forming a conical radiation region. When its cone-shaped radiation periodically sweeps over the Earth, it behaves as a pulsar.

Pulsars will periodically emit pulse signals, if the earth passes by its side, it will not directly suck the earth into it like a black hole, but will attract the earth and destroy the earth's life with powerful electromagnetic waves at the same time, the earth will almost be torn into pieces, the powerful pulse will also periodically give the earth a strong vibration, and the earth will be melted into the pulsar in endless torment.

As long as the Earth is kept at a safe distance from the black hole, the black hole has no effect on the Earth.

So, pulsars are more scary than black holes.

Pulsars are not scary. FAST has discovered many pulsars. Black holes can devour everything, which is more terrifying.

It is not the same, although both have strong gravitational pull, both are caused by the collapse of perseverance, but the essence is different.

A pulsar is a sphere with three-dimensional properties.

The so-called black hole is a point with only one-dimensional properties.

The black hole that everyone usually talks about is the "event horizon" that includes the black hole, which is the strongest gravitational range of this singularity, which you can understand as the signal range of WiFi, and there is nothing in this range. Because everything is absorbed by the singularity. So the true black hole density is positive infinity.

Pulsars are a type of neutron star, and the density of a neutron star is calculable and has an upper limit.

An astronomical phenomenon is a special phenomenon that occurs when a celestial body reaches a certain position. Today we're going to talk about pulsars, which are rotating neutron stars, so do you know how scary pulsars are? Next up by this issueKnowledge of horoscopesAstronomers once discovered one of the brightest pulsars ever recorded, and they almost mistook it for a black hole. After measuring its output, astronomers were shocked that its output energy is equivalent to 10 million suns. In other words, it has the same energy as a black hole, but the mass of the Mono land is much less, which is incredible.

Pulsars will periodically emit pulse signals, and if the Earth passes past it, it will not directly suck the Earth into it like a black hole, but will almost tear the Earth's ridge into pieces while attracting the Earth, and the powerful pulses will also periodically give the Earth a strong vibration. The Earth will be melted into pulsars in endless torment, pulsars are considered to be death stars, the product of the explosion of stars during their supernova phase. After the supernova explodes, there is only one nucleus left, only a few tens of kilometers in size, and its rotation speed is very fast, some can even reach 714 revolutions per second.

In the process of rotation, its magnetic field will cause it to form strong radio waves to radiate to the outside world, pulsars are like beacons in the universe, continuously emitting electromagnetic waves to the outside world, this electromagnetic waves are intermittent, and have a strong regularity. It is because of their strong regularity that pulsars are considered to be the most accurate clocks in the universe. The existence of pulsars was not expected in the past, and its properties are so peculiar that many stories have been generated in the process of learning about it.