NASA/CSA/ESA
How did the galaxies cluster after Big Bang? It may not be as we thought, and who helps us resolve the puzzle is a galaxy that belongs to the fascinating category of large design spiral.
A new discovery at the end of cosmic dawn is in question what we knew about galaxies after Big Bang.
JWST detected a huge ultra-mass galaxy, as came 12.8 billion a year ago. Its structure is so complex that scientists believe it can only belong to the most spectacular category of galaxies: The spiral of great design. He had called him Zhúlóng.
And this curious galaxy brings many important questions. ”Zhúlóng shows that the mature galaxies emerged much earlier than expected In the early thousands of millions of years after Big Bang, ”writes a team led by the University of Geneva University Mengyuan Xiao in Switzerland Astronomy & Astrophysics.
“Our discovery offers fundamental restrictions on the models of formation of massive galaxies and the origin of spiral structures in the primitive universe,” astronomers also explain.
This galaxy is a almost perfect model of a spiral galaxy: It has prominent, well-formed and visible arms, bowing out of a bright and well-defined galactic center.
“What makes Zhúlóng stand out is how much it resembles the Milky Way in shape, size and stellar mass,” says Xiao, quoted by
O black hole in its center seems to be quiescent, This suggests that the Star Formation rate, between 20 and 155 solar masses a year, is slowing down.
“The presence of all these properties makes Zhúlóng a very exceptional galaxy,” writing the researchers, “indicating the rapid formation and morphological evolution of massive galaxies in the primitive universe,” the researchers write.
