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Einstein was right, new confirmation from the Magic telescopes

2020-07-14T11:50:36.746Z


The speed of light in constant vacuum even at high energies (ANSA)New confirmation for Einstein's theory of general relativity: the speed of light in vacuum is constant even at high energies. The Magic telescopes in the Canary Islands indicate this, which revealed for the first time a flash of gamma rays at very high energies and with an intensity never seen before. The result is published in Physical Review Letters signed by the Magic scientific collaboration, ...


New confirmation for Einstein's theory of general relativity: the speed of light in vacuum is constant even at high energies. The Magic telescopes in the Canary Islands indicate this, which revealed for the first time a flash of gamma rays at very high energies and with an intensity never seen before. The result is published in Physical Review Letters signed by the Magic scientific collaboration, in which Italy participates through the National Institute of Astrophysics (INAF), the National Institute of Nuclear Physics (INFN) and numerous universities.

The flash of gamma rays called Grb190114c, observed by Magic on January 14, 2019, is the first detected by the energies of theraelectron volts (one thousand billion times more energetic than visible light). The careful analysis of the data recorded by the telescopes did not reveal any delay in the arrival times of energy-dependent gamma rays.

A new confirmation for Albert Einstein, who at the beginning of the last century, elaborating the theory of general relativity, had assumed that the speed of light was a universal constant.


Artistic representation of a gamma-ray flash observed by MAGIC telescopes and satellites (source: Superbossa.com and Alice Donini)

"Carrying out this measurement was not easy, because we had to compare the arrival times of the gamma rays of different energies: to do this it was necessary to assume that they had all been emitted at the same time from the source, adopting a model of the source based on all the knowledge of this phenomenon so far available to us ", explains Alessio Berti of the Infn of Turin.

"Until now this type of study had never been conducted using gamma-ray bursts, because they had never been measured at these energies," explains Antonio Stamerra of the INAF of Rome and scientific coordinator of the Magic collaboration. "For over twenty years we have waited to be able to make this type of observation aware of its importance for the progress of our understanding of the universe."

Source: ansa

All tech articles on 2020-07-14

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