Astronomers have discovered what may be the oldest and most distant galaxy ever observed, which formed almost a little later From the Big Bang, which chronicles the origin of the universe, and may have been full of the first generation of stars.
The researchers said yesterday that the galaxy, named (HD1), dates back more than 300 . million years after the Big Bang 13,8 billion years.
Evidence indicates that (HD1) formed stars at an astonishing rate, perhaps about 100 new stars In the year, or alternatively, it contained what may be the largest known black hole according to They said.
The researchers gathered their information from telescopes in Hawaii and Chile and the Orbiting Spitzer Space Telescope. They hope to obtain more explanations using the James Webb Space Telescope, which will be operational within months after It was launched by the US Aeronautics and Space Administration (NASA) in December.
“It was published in the Astrophysical Journal,” said astronomer Yuichi Harikan, the lead author of the research reviewing the details of the discovery. Observational information about HD1 is limited, and other physical properties, including its shape and mass, are still mysterious Total and its metallicity.
Metallicity refers to the percentage of substances other than hydrogen and helium that were present in the early universe.
“The difficulty is that this is almost the limit of the capabilities of current telescopes in terms of Sensitivity and wavelength.
The researchers said that (HD1), which is likely to have a mass of ten billion times greater From our sun, it may have stars from the first generation of stars. Those stars, which are called the third group, are very massive, luminous, hot, short-lived, and consist of a large shape Almost exclusively hydrogen and helium.