It's always great to find signs of the existence of another galaxy, after all, this is essential for us to discover information about it. For example: how stars are created in the most distant galaxies? Thanks to gravitational lensing, astronomers in Montreal and India have found radio signals from a distant galaxy. Now scientists have the opportunity to better understand the origin of the universe.
Galaxy closest to the Big Bang has radio signal detected
see more
Luxury: The most expensive bonbon in the world costs 40 thousand reais; Discover this gem...
Powerful fertilizer with coffee grounds: The salvation to strengthen plants…
The further away a galaxy is from Earth, the weaker the signal for scientists to identify it, so until then only very close galaxies had been studied, which greatly limited the knowledge about the universe. Thanks to the gravitational lensing of the Giant Metrewave Radio Telescope in India, a galaxy at record distance has had its radio signal detected. It was faint, with a wavelength – known as a line – of 21cm.
Astronomers have never before detected this radio signal coming from such a great distance.
This discovery was very beneficial. With greater distances being identified, it becomes possible for scholars to start researching the origin of the universe with more data at hand.
The galaxy SDSSJ0826+5630
The galaxy in question is a star-former and it is 8.8 billion light-years away, which means it is the closest to Earth. big Bang hitherto discovered.
Researcher Arnab Chakraborty of McGill University states: "The detected signal was emitted by this galaxy when the universe was just 4.9 billion years old, allowing researchers to glimpse the secrets of the universe. The primeval universe. It's the equivalent of looking back 8.8 billion years."
In addition, it was also possible to analyze the gas compositions of the galaxy. In this way, they were able to perceive that the atomic mass of these gases is practically twice that of the stars that we can see.
the gravitational lens
Co-author Nirupam Roy says: “Gravitational lensing magnifies the signal coming from a distant object to help us peer into the early universe. In this specific case, the signal is deflected by the presence of another massive body, another galaxy, between the target and the observer. This effectively results in the signal being magnified by a factor of 30, allowing the telescope to pick it up.”