NexTV Africa & Middle East

Complete News World

The oldest spiral galaxy ever observed is discovered | picture

You have successfully registered
Please click on the link in the email sent to

Science

The most important results and most important achievements in the field of science.

Spiral galaxies account for up to 70% of the total number of galaxies in the universe. Japanese astrophysicists discovered one whose spiral shape could have formed more than 12 billion years ago, or only 1.4 billion years after the “Big Bang”.

By analyzing images of a galaxy with a radius between 6,500 and 16,300 light years – or about three times smaller than the Milky Way – called BRI 1335–0417 And its location in the distant universe, they concluded that it has a spiral structure. In particular, they discovered that it had two arms and a gas disk in the center. The study authors suggest that it could have formed about 1.4 billion years later the great explosion.

One of the study authors explained: “Since it is a very distant object, we may not be able to see the true edge of the galaxy on this observation, but for a galaxy that was in the early universe, it was gigantic,” Takafumi TsukuyiFrom Sukkenday University.

But how was this unusual structure formed? Japanese astrophysicists have suggested that its formation may have been due to collision with a smaller galaxy. They added that the gas on the outside of BRI 1335–0417 is gravitally unstable, which encourages stars to form.

See also  Google Pay: Save, Pay and Manage

During the experiment, the scientists used the data obtained by the Atacama Large Millimeter / submillimeter Array (ALMA). The galaxy also contains large amounts of dust, which is something that blocks starlight and thus hinders observation. However, ALMA is able to detect Radio broadcast Carbon ions, enabling clearer images of BRI 1335-0417.

“The quality of the ALMA data was very good, and I could see so many details that I thought it was a nearby galaxy,” Tsukui admitted.

Galaxies that contain large amounts of dust and effectively produce stars are thought to be the ancestors of giant elliptical galaxies, so BRI 1335–0417 will likely become an elliptical galaxy in the future.

“Our solar system is located in one of the spiral arms of the Milky Way. Tracing the origins of the spiral structure can provide us with clues about the environment in which the solar system originated.” is over Another researcher is the professor of the Japan National Astronomical Observatory Satoru Iguchi.