"Hui Eye" satellite refresh the strongest magnetic field record of the universe again

The neutron star is the celestial body with the strongest magnetic field in the universe. The detection of its X -ray energy spectrum is the only way to directly measure the neutron surface magnetic field. Recent After the strongest magnetic field of the universe, the world record of the highest energy rotation absorption line and the strongest magnetic field of the universe was greatly refreshed. The research work was mainly completed by the Institute of High Energy Physics of the Chinese Academy of Sciences and the University of Tubinen in Germany. Recently, it was published in the international academic journal "Celestial Physics Magazine Communication".

△ Huiyi Eye Satellite Observation Pulse Star Art Picture

The neutron star X -ray dual -star system is composed of neutron stars and its stars. The gase of the stars falls to the neutron star in the strong gravity effect of the neutron star, forming a gas disk around the high -speed rotation of the neutron star, called the absorbing disk. The material on the accumulation disk will fall along the magnetic line of the neutron star to the surface of the neutron star, and emit a strong X -ray radiation. The radiation is rotated with the rotation of the neutron star, forming a periodic X -ray pulse signal. Therefore, such celestial bodies are also called "" X -ray accumulated pulse star ". Observations found that this type of celestial body will appear "depression" structure on X -ray radiation spectrals. This is caused by the electronic resonance scattering of the X -ray photon that is spiny in the magnetic field and is called a rotary absorption line. The magnetic field intensity corresponding to the energy at the rotation line is the magnetic field strength of the neutron star surface. This is the only way to directly measure the strength of the magnetic field near the neutron surface.

The super bright X -ray pulse star is a special X -ray accumulation pulse star with an ultra -luminitude of the X -ray light. It was found in multiple galaxies outside the galaxy that astronomers speculated that the magnetic field strength of its pulse star was very high, but did not directly measure the measurement evidence. The "Huiyan" satellite conducted detailed wide energy observations of the first ultra -bright X -ray pulse star in the Milky Way. Yitesla's neutron star surface magnetic field. This is not only the highest measurement of the cosmic celestial field to date, but also the first time the surface magnetic field of the star star is directly measured in the super -bright X -ray source. In addition, for the first time, the scientific research team directly proves that the neutron star eliminates the bipolar symmetrical coupling magnetic field, and it does have a more complex asymmetric magnetic field structure.

Huiyi Satellite is the first X-ray astronomical satellite in my country. It carries three scientific loads and space environment monitors: 1-250KEV with high-energy X-ray telescope, medium-capable X-ray telescope and low-energy X-ray telescope. Compared with foreign X -ray satellites, the Hui eye satellite has the largest advantages of the effective area of ​​the effective area of ​​the capable section, the maximum effective area of ​​the high -energy X -ray energy section, the high time resolution, the small detection time, the strong observation source without the photon accumulation effect, etc. Open a new window for observing black holes, neutron stars hard X -rays and energy spectrum research. The "Huiyan" satellite has refreshing the highest record of energy measurement of the energy measurement of the rotation lines three times in a row, which shows that it has the unique international ability of the high -energy X -ray energy spectrum of celestial bodies.

(CCTV reporter Shuaijunquan)

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