Pulsars – sources of rhythmic radio emission – neutron stars with very fast rotation around the axis in tenths and hundredths of a second and with a strong magnetic field of 108 T. The Crab Nebula. Some pulsars emit not only radio waves, but also visible radiation, X-rays and gamma rays. The period of the slowest pulsars is about 4 s, (P = 4.8 s, Centaurus X-3) the period of one of the fastest is thousandths of a second (PSR 1937 pulsar – 1.558 ms). At the end of 1982, a millisecond pulsar with a period of 0.00155 s was discovered in the constellation Chanterelle. A rotation with such an astonishingly short period means that the star makes 645 revolutions per second.
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