Astronomers have discovered the most distant of all known galaxies - HD1. From it to the Earth 13.5 billion light years. So far, scientists do not know exactly what it is, but they suggest that it may contain stars that have never been observed before, writes Space.
HD1 is 100 million light-years farther from Earth than the previous record-breaking galaxy GN-z11. It is estimated that around 100 stars form annually in HD1, about ten times more than astronomers had expected.
Galaxy HD1 is very bright in ultraviolet light. This means that some energy processes were actively going on in it or a few billion years ago.
The bright glow can explain two versions. First, there is a supermassive black hole in the galaxy - its mass can be 100 million times greater than the sun.
Second, there are population III stars in HD1, the very first in the Universe, they have not been observed yet. The stars of the first generation after the Big Bang were more massive, brighter and hotter than subsequent ones. It is believed that they emit more ultraviolet light than the rest.
No comments:
Post a Comment