Not exact matches
While peering through one of the clusters, Abell 2744, astronomers recently found a candidate for one of the most distant
galaxies known, a toddler
growing up about 500 million years after the
Big Bang.
These gas - filled limbs are often where new stars form, and can constrain how
big a
galaxy's central black hole
grows.
It is one of the
biggest in our
galaxy, and may offer insight into how these objects can
grow so
big.
Stars can
grow no
bigger than 150 times as massive as our sun, according to a study of the dazzling «Arches» cluster near the center of our
galaxy — shown here in an artist's impression.
The idea is that the
bigger the Milky Way
grows, the more new
galaxies it could attract,
growing larger still.
The finding suggests that supermassive black holes sprung up surprisingly quickly after the
Big Bang and
grew faster than the
galaxies surrounding them.
The fact that several such pristine
galaxies turn out to have a small, still - expanding black hole at their core suggests that black holes can
grow to intermediate size without mergers, but then need to pool their resources to get much
bigger.
How these black holes got so
big is still a mystery: did they
grow gradually from mergers of smaller black holes, coalescing when their host
galaxies merged?
All
big galaxies in the universe host a supermassive black hole in their center and in about 10 percent of all
galaxies, these supermassive black holes are
growing by swallowing huge amounts of gas and dust from their surrounding environments.