Jakarta –
Scientist catching an energy blast from a bintang who are dead and to this day, they are still haunted by many questions.
Not long ago, a study was published in the journal Nature Astronomy which revealed the power of radiation from a pulsar, a neutron star as a remnant of the death of a massive star.
The gamma rays captured by scientists are known to be equivalent to 10 trillion times the energy of visible light, which is 20 tera-electronvolts. This makes the star a pulsar with the highest radiation power ever detected.
“There is about 200 times more energetic than all the radiation ever detected from this object (pulsar),” said co-author Christo Venter, from North-West University in South Africa, as reported detikINET from Independent, Saturday (07/10/2023)
However, scientists still cannot explain how this star can have so much energy. There needs to be a new, bigger explosion so they can better understand this phenomenon.
Pulsars themselves are formed when a large star explodes into a supernova and leaves behind small dead stars, one of which is a pulsar as a neutron star which is only 20 km in diameter.
“They are so dense. One teaspoon of Pulsar material has a mass of more than five billion tons, or about 900 times the mass of the Great Pyramid of Giza,” said Emma de Ona Wilhelmi, a scientist at the High Energy Stereoscopic Systems Observatory in Namibia who detected the explosion.
Like planets, pulsars continue to rotate at high speeds supported by very strong magnetic charges. As they spin, they spew electromagnetic radiation like cosmic beacons. That way, we can see the radiation emitted at a certain location on earth at a certain time.
Scientists can understand this phenomenon by looking for different energy bands of radiation in the electromagnetic spectrum.
Previously, the Vela Pulsar was believed to be the brightest pulsar in the radio spectrum as well as the brightest persistent source in giga electronvolts. Since this discovery was made, Vela’s position has been eliminated.
“Perhaps we are witnessing the acceleration of particles through a so-called magnetic reconnection process outside the light cylinder, which somehow still maintains its rotation pattern? But even this scenario faces difficulties in explaining how such extreme radiation is produced,” said lead author Arache Djannati- Atai, from the Astroparticles & Cosmology (APC) laboratory in France.
*This article was written by Khalisha Fitri, a participant in the Merdeka Campus Certified Internship Program at detikcom.
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(fyk/fyk)
2023-10-08 02:10:33
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