Discover the oldest universe spiral galaxy

Astronomers at Swinburne University of Technology and Australian National University (ANU) discovered A1689B11 is about 11 billion years old.

This is the oldest galaxy ever discovered, formed only 2.6 billion years after the Big Bang. The results are published in Cornell University's online library, USA, on October 30.

The team used a high-end technique when combining gravitational lens with advanced equipment, near infrared spectrophotometer (NIFS) placed on Gemini North Telescope in Hawaii (USA) to determine characteristics. and the natural twist of this galaxy. Attractive lenses are the largest telescope in nature, created by giant galaxy clusters and dark matter. The galaxy cluster bends and amplifies the light of the galaxies behind it like a normal lens but on a much larger scale.

Spiral galaxy A1689B11.

Tiantian Yuan, head of the research team at Swinburne University, said: "This technique allows us to study ancient galaxies with high resolution that can detect unprecedented details. We It is possible to look back at 11 billion years ago in the right time and directly witness the formation of a galaxy's primordial spiral arms'.

Co-author, TS. Renyue Cen (Princeton University) said that the study of ancient spiral galaxies like the A1689B11 galaxy is key to discovering the mystery of the moment and how the Hubble sequence appears.

Spiral galaxies are extremely rare forms in the universe at the time of formation. The new discovery about A1689B11 will help us understand how galaxies move from a chaotic state to a thin and quiet disk like the Milky Way today.

The team also added that the study shows many surprising features about the galaxy A1689B11 as the rate of formation is 20 times faster than galaxies today. This is also the characteristic of other young galaxies of the same mass in the early universe. A1689B11 comes in a thin disc, gently rotating with a little variation. This type of spiral galaxy is extremely rare in the early universe.