In a galaxy about 12 billion light-years from Earth, scientists have detected fluoride. The chemical element, contained in the bones and teeth, was identified for the first time in such a distant galaxy creating new stars.
In particular, the team of Maximilian Franco from the British University of Hertfordshire made the discovery with the ALMA telescope in Chile. Like all chemical elements, fluoride builds up in stars, but until now it was not known exactly how it was produced. As Franco said, “We all know fluoride because the toothpaste we use every day contains it. “But we did not even know what kind of stars produce the most fluoride in the universe.”
The findings of the detection
Fluoride was detected in the form of hydrogen fluoride in large clouds of gas in the distant galaxy NGP-190387, at a time when the universe was only 1.4 billion years old. That is about 10% of his current age. As stars eject into space the chemical elements they have created in their nuclei when they reach the end of their lives, The new discovery means that the stars that created this fluoride in that galaxy must have lived and died relatively quickly.
It is estimated that the most likely producers of fluoride in the universe are the massive mass of Wolf-Rayet stars that live only a few million years. “We have shown that these stars, which are among the largest and can explode violently as they reach the end of their lives, help us, in a way, to maintain the good health of our teeth,” said Franco humorously.
The discovery of fluoride in the galaxy NGP-190387 so far in space and time is one of the few fluoride detections beyond our galaxy.
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Source: Digital Life! by www.digitallife.gr.
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