News on October 11, according to a paper published in the latest issue of "Nature Astronomy" magazine, the earth was bombarded by strong gamma rays from a dead star, its power was so powerful that scientists could not fully explain it.A massive telescope system in Namibia detected these intense gamma rays, which would burn humans to a crisp if exposed.
According to it, these gamma rays were emitted by the Vela pulsar, which is about 1,000 light-years away from the Earth. It is the remnant of a massive star that is estimated to have exploded as a supernova 10,000 years ago and then collapsed on itself.
In addition, Will Helmy, a scientist at the High Energy Stereo System (HESS) Telescope Observatory in Namibia and an author of the study, said that these dead stars are composed almost entirely of neutrons and are incredibly dense, with a teaspoon of the material weighing more than 5 billion tons.
Moreover, the Sail Pulsar is only about 19 kilometers in diameter and rotates 11 times per second, faster than a helicopter rotor.The gamma rays it emits have the smallest wavelength but the largest energy in the electromagnetic spectrum. The energy of these gamma rays reaches 20 teraelectronvolts, which is about 10 trillion times the energy of visible light.
The Vela pulsar now officially holds the record for the most energetic gamma-ray pulsar ever discovered, potentially correcting existing astronomical models, the paper's authors say.