Over 10 billion years ago , the universe experienced an intense form of star formation , with galaxies producing raw wizard at a calendar method never seen before or after . The most fertile galaxy had a grotesque rate of star formation , a thousand times in high spirits than what the Milky Way currently attain . These are the starburst galaxies , and now researchers have encounter a distant one in more item than ever before .
The target object is called COSMOS - AzTEC-1 , located 12.4 billion light - year from us . The galax has all the right components to make stars at a in high spirits charge per unit and we now get it on how the gas in it locomote . As report inNature , the gun did n’t just flow in the heart but purl in several clouds .
“ We found that there are two distinct large clouds several thousand light - years forth from the nerve center , ” lead generator Ken - Ichi Tadaki , from the National Astronomical Observatory of Japan , aver in astatement . “ In most remote starburst galaxies , star are actively mould in the center . So it is surprising to discover off - centre clouds . ”
The reflexion were only potential thanks to the resolution power of theAtacama Large Millimeter / submillimeter Array(ALMA ) . Using ALMA , the international team was able to work out that the clouds are not static . This unbalance is possibly the key to the Galax urceolata ’s rail star formation .
In regular galaxies , the pressure make by the stars and soberness is balanced out so that the star formation move at a moderate step . In COSMOS - AzTEC-1 , the pressure is far weaker than the gravity and thus churns out wizard at an incredible rate . The gas in the galaxy will be all converted into star in just 100 million years , 10 times faster than in other asterisk - forming galaxies .
The intellect for the instability is not clear . It could be an interior mechanism or it could be something external . Maybe COSMOS - AzTEC-1 interact with another galax .
“ At this moment , we have no evidence of fusion in this galaxy . By observing other exchangeable galaxy with ALMA , we want to unveil the relation between galaxy mergers and monster Galax urceolata , ” explain Tadaki .
More observations of similar starburst galaxies are clearly needed . Galaxy amalgamation are of the essence in the evolution of massive galaxy after all , and they might be the way to explain just how these star - forming monsters occur .
