The largest gamma ray explosion ever discovered

American and European astronomers have observed the largest gamma ray burst (GRB) ever in the universe.

This is a finding that could alter the previously accepted theories about the nature of these explosions.

According to four articles published in the American Journal of Science, scientists observed the explosion of GRB 130472A with both the telescope and ground-based telescope on April 27.

According to astrophysicist Daniele Malesani of the University of Copenhagen, Denmark, this is one of the most powerful explosions observed by scientists so far, with tremendous brightness.

Photo: hanoimoi.com.vn

Many special points of this explosion have made the scientific community very interested.

The explosion occurred 3.6 billion light-years from Earth, half the distance of the normal distance of gamma-ray bursts in the universe. In addition, the explosion also lasted a record, up to 20 hours, longer than any previously observed GRB.

Besides, the intense light intensity of the explosion also allows scientists to detect some other unusual features. For example, telescopes have detected the emergence of more energetic photons and gamma rays than the previous theoretical models of similar explosions.

The residual radiation of the GRB 130472A explosion is also very strong, can be observed on telescopes for several months afterwards, instead of only lasting a few days or weeks as normal explosions.

Analyzing this residual radiation, the scientists found the spectral structure and properties of the exploded star, which is a giant star with masses 20-30 times the mass of the Sun, but the size The ruler is only 3-4 times larger than the Sun, so there is a very dense structure.

Scientists say these new findings do not completely deny existing theories, but researchers need to change some or accept a new theory that matches those characteristics.

Gamma-ray bursts are the most intense and intense explosions in the universe first recorded in the 1960s. The cause of these explosions has so far remained a mystery to the scientific community. .