When two galaxies collide, the collision will be violent. That is what occurred to 2 of them and is revealed via a picture from the Gemini North telescope. The “toffee galaxies” that are actually transferring away from one another, spanning a bridge of sterile matter between them.
UGC 12914 and UGC 12915. They’re about 180 million light-years from Earth towards the constellation of Pegasus. Astronomers themselves have nicknamed them “Taffy galaxies” or “the Taffy system”. Tailored from a well-liked caramel delicacy in the US. As a result of these galaxies took their kind after a head-on collision that occurred about 25 million years in the past. The picture captured right here by Gemini North, the instrument on the Gemini Observatory within the northern hemisphere, reveals the bridge of matter that fashioned between UGC 12914 and UGC 12915 at the moment.
This bridge consists of high-quality molecular filaments and clusters of hydrogen fuel, say the researchers from NOIRLab (USA). Every little thing it’s good to make stars. Its construction is decidedly paying homage to a stick of caramel that expands because the galaxies transfer aside. That is precisely the place the shoe pinches.
The violence of a head-on collision
The researchers level out that many galaxy collision situations can set off star formation. By combining or redistributing gases and matter initially current within the galaxies concerned. This doesn’t appear to be the case with the “Taffy Galaxies”.
“When the 2 galaxies collided head-on, their disk and parts collided. The result’s huge power injection into the fuel, making it very turbulent. Because the galaxies emerged from their collision – seen within the Gemini North picture – high-velocity fuel was extracted from every of them, creating a big bridge between the 2. And the turbulence of stellar matter via the bridge now prevents the gathering and compression of the fuel wanted to kind new stars,” the astronomers clarify in a press release from NOIRLab.