J1739-285

The fastest rotating neutron star

European Space Agency Of scientist Recently, they announced that with the help of the powerful "Integral" astronomical telescope, they have discovered the fastest rotating neutron star , 1122 revolutions per second earth rotation 100 million times faster.

The first to observe this star Spain Astronomer Kukler said that the J1739-285 neutron star , but not long ago, its rotational speed was calculated through a telescope.

Foreign name: J1739-285
Alias: XTE J1739-285
Classification: neutron star
Discoverer: Kukler said

Discovery time: 1999
Average density: 100 million tons per cubic centimeter
Diameter: 10 km
Rotation period: 1122 cycles per second

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XTE J1739-285 grabs gas from nearby stars and explodes

Of this neutron star diameter About 10km, but quality But with sunlight Similar, its density is amazing, as high as 100 million tons per cubic centimeter. Its huge gravity is close to fixed star Constantly capture a large amount of hot gas and induce fever nuclear explosion 。

Astronomers discovered it through this phenomenon. The previous record of neutron star rotation is 716 cycles per second, and the rotation speed of stars is generally 270-715 cycles per second. 700 laps was once considered celestial bodies According to the current physical theory, if the rotational speed exceeds this limit, the star will be destroyed or transformed into black hole 。 But the latest findings contradict this view.

Theoretically, 1122 revolutions per second is not the rotation limit, and the rotation speed of large neutron stars may be as high as 3000 revolutions. What puzzles astronomers is why the celestial bodies still shrink without losing themselves under the powerful centrifugal force of high-speed rotation material 。

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