A pulsar is a cosmic source of x-ray, optical, gamma, or radio emission with a magnetic field that has arisen after the explosion of a supernova. The pulsar PSR J0835-4510, located at a distance of 959 light years from our world, attracts attention by the fact that it makes about 11 revolutions per second, at the same time it has huge optical brightness.
Astronomers from Monash University, McGill University, Monash University (Canada), University of Tasmania drew attention to another interesting feature of this pulsar, which has a second name as a Pulsar in Sails. It has a glitch, i.e. unpredictable increase in speed. Usually it gradually decreases due to the processes of inhibition, which occurs due to the emission of high-energy particles and powerful radiation.
It turned out that after the so-called glitch, the pulsar rotated faster. After a while, it began to spin as usual. The results of the study were obtained after analyzing data from 2016.
A study of scientists showed that inside the cortex of a pulsar there are superfluid neutrons. They move outward at high speed, but there is a solid outer crust on their way. Due to the impact, the pulsar star begins to spin. Then the second portion of the superfluid neutron liquid catches up with the first. Because of this, the motion of the star is gradually slowed down, falling to its usual speed.This phenomenon was discovered by Paul Lasky, a scientist at the Monash Institute.
A similar phenomenon has been described several times in the scientific literature. But recently it was discovered thanks to the joint work of Canadian scientists.
The obtained observation results are not consistent with the generally accepted theory of pulsar behavior. According to Dr. Greg Ashton (Monash University), before a glitch (glitch), the star somewhat slows down the speed of rotation around the axis, and then again resume it.
According to scientists, the mysterious rotation of the pulsar is the key to solving the glitch. But to confidently talk about why he appears, we need new data from astronomer research. So far, astronomers see a connection between the explosion of supernovae (that is, objects that increase brightness by 10 or more magnitudes) and the formation of pulsars.
