Composite image of the galaxy pair ADFS-27. The background image was taken by the Herschel Space Observatory, and the object was recorded with an APEX telescope. ALMA (right) identified two galaxies ADFS-27N (north) and ADFS-27S (south). 12.7 billion light years away from us
A new review from ALMA showed an amazing collision of two bright and massive galaxies in the early Universe. Such superluminal stellar galaxies are rare and exemplify a violent stellar birth.
The new formation was designated as ADFS-27, because the galaxies merge into a single elliptical type. But the initial blow led to unbelievable bursts of star formation. It is believed that the merger will become the new cluster core. This is one of the most massive spatial structures.
The galactic couple is 12.7 billion light years distant from our planet and lives in the territory of the Golden Fish. It turns out that scientists are considering a system that appeared when the universe was only a billion years old.
Artistic vision of the beginning of the merging of two galaxies
For the first time the systems were captured in the Herschel Space Observatory. It was a red dot in the southern sky. Details are already apparent in the ALMA observation. Higher power allowed to determine the distance and increased intensity of stellar birth.
Galaxies are observed in infrared light, because the dust absorbs stellar glow. Due to the great distance and universal expansion of the infrared light shifts to longer millimeter and submillimeter waves (due to the Doppler effect).
ALMA was created specifically for searching and studying light of a similar nature. New observations show that galaxies are 30,000 light-years distant and move with an acceleration of hundreds of km / s. Because of the contact, they slow down and gradually come closer. The whole process will take several hundred million years.