Today in space: the first pulsar was discovered

February 24, 1968,Jocelyn Belle Burnell“, an astronomy graduate student, announced that he had discovered the first pulsar.

Discovery of the first pulsar

For the first time, two astronomers from Cambridge University named Jocelyn Bell Burnell and “Anthony Huish” discovered pulsars in 1968 as radio sources that turned on and off with a constant frequency. They were studying distant galaxies at that time. A few months ago, he noticed that the data from his telescope sent a pulse signal every 1/3 second. At first, he and his advisor, Anthony Hoych, thought it might be aliens. They rejected this option when they received another signal from another part of the sky. These signs were found to be of natural origin and can be found throughout the galaxy. Before publishing their findings, Bell and Hewish found four pulsars, but they still had no explanation for them.

pulsars

The source of these signs is a celestial object that was named a pulsar for this reason, meaning a pulsating star. Scientists have since discovered that pulsars are rapidly orbiting neutron stars that emit narrow beams of light in the opposite direction.

During pulsars, fountains of particles flow out from their magnetic poles at speeds close to the speed of light.

The mentioned pulsator now PSR B1919+21 It is called PSR stands for “radio pulse source”. PSR B1919+21 shows the coordinates of this pulsar in the sky.

Although pulsars were first detected only with radio telescopes and because of their radio signals, today some of them can be observed with X-ray and gamma-ray optical telescopes.

We now observe the brightest of these objects at almost every wavelength of light. During pulsars, fountains of particles flow out from their magnetic poles at speeds close to the speed of light. These eruptions produce very strong beams of light. If these poles are in line with our view, the pulsars are seen as regular pulses with rapid rotation.

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