The strongest "Star quake" how terrible

Earthquakes are a natural phenomenon known to all of us, and they are not unique to Earth. Theoretically, any planet with a solid crust can have an "earthquake", and for the sake of distinction, we can call it a "star quake". The strength of the "star tremor" varies from planet to planet, so how terrible is the strongest known "star tremor"?

On December 27, 2004, the Earth's outer atmosphere was suddenly bombarded by a wave of gamma rays and X-rays, and atmospheric molecules were ionized and glowing, while several artificial satellites orbiting the Earth were also affected.

Scientists have confirmed that the "perpetrator" of this event is a neutron star named "SGR1806-20", which is located in the sky in the direction of Sagittarius, about 50,000 light years away from us. Further research shows that this is a "star shock" phenomenon, which lasts only 0.1 seconds.

Although the duration is very short, but the energy released is quite amazing, even after 50,000 light-years distance, its brightness in the gamma-ray band can exceed the full moon. Scientists calculated from observational data that the energy released by this "star quake" is about 1.8 x 10^39 joules, what is the concept?

According to calculations, the Sun releases 3.8 x 10^26 joules of energy per second, so a simple calculation shows that the energy released in 0.1 seconds is equivalent to the total energy released by the Sun in 150,000 years. How many magnitude earthquakes would this be if measured in terms of earthquake magnitude?

The standard formula for earthquake magnitude is "E=10^4.8×10^(1.5M)", where E is the energy released by the earthquake and M is the magnitude of the earthquake, so we can conclude that the energy released by the "Star quake" is equivalent to about 21 magnitudes. The earthquake.

It should be noted that the Earth is a gravitation ally cohesive celestial body, its gravitational binding energy is about 2.25 x 10^32 joules, if the Earth can withstand more than this value of energy, the Earth will fall apart, and 1.8 x 10^39 joules is already 8 million times the Earth's gravitational binding energy, so it can be said that the Earth can not withstand such high energy.

If this "star quake" occurs within 10 light-years from Earth, its release of gamma rays and X-rays will be able to make the Earth's grass grow.

"The "SGR1806-20" is the strongest known "Star quake", through the above description, I believe you know clearly how powerful it is! The above description shows how powerful it is. So how was this magnitude of "star quake" generated? Let's see.

A star in the universe will collapse gravitation ally after its core runs out of "fuel", and if the mass of the star is large enough, a powerful supernova explosion will occur, after which the core may evolve into a neutron star.

During the evolution process, if the rotation period of the neutron star's "predecessor" is less than about 10 milliseconds, and if there is strong enough convection in the core material, it may evolve into a special kind of neutron star - a magnet with an unusually strong magnetic field.

Scientists estimate that, on average, one in ten neutron stars in the universe exists as a magnet, whose own magnetic field strength can be as high as 1,000 trillion gasses, compared to about 25 gasses in the core of our planet.

Magnetometers are not composed entirely of neutrons; their shells are composed of a solid lattice of heavy elements (mainly iron) and a large number of free electrons and are therefore subject to magnetic fields.

As the magnetic field of magnet changes, the "pressure" on its shell increases, and when it exceeds the limits of the shell, the shell is twisted and torn, releasing powerful energy, and a "star quake" occurs.

Neutron stars are known in the universe second only to the density of black holes dense objects, their density is usually more than 100 million tons per cubic centimetre, and the mass of neutron stars, the density can be as high as 1 billion tons per cubic centimetre, if the Earth is compressed into a neutron star, then the radius of the Earth will be only 11 meters. Accordingly, it is not difficult to imagine, such a dense celestial body occurring in the "star shock", its power will be how terrible.

Fortunately, there is no magnet in the vicinity of our planet, and observations show that among all known magnetometers, the closest one is "GR 0418+5729", which is about 6500 light years away from us and will not threaten the Earth, so we do not have to worry about it.