In a 2015 study, Pieter van Dokkum of Yale University and colleagues announced they had unearthed 47 never - before - seen, Milky Way - sized yet extremely diffuse (spread out, so relatively dim) galaxies
in the Coma Cluster of galaxies, among the most studied in astronomy.
Some dark galaxies, like
those in the Coma cluster but with even less hydrogen, will be tougher to bring into the fold.
What's more, as Zwicky first wrote in a Swiss journal, galaxies
in the Coma cluster seemed to be moving in relation to one another at rates that would violate the laws of gravity, unless you posited the mysterious presence of a great deal of Dunkle Materie (or dark matter).
The analysis is based on Hubble images of a spiral galaxy
in the Coma cluster, located 300 million light years from Earth.
This Hubble Space Telescope image of a spiral galaxy
in the Coma cluster highlights dust extinction features.
The current record holder, discovered
in the Coma Cluster by the UC Berkeley team in 2011, tips the scale at 21 billion solar masses and is listed in the Guinness Book of World Records.
While the black hole discovered in 2011 in the galaxy NGC 4889
in the Coma Cluster was estimated to have an upper limit of 21 billion solar masses, its range of possible masses was large: between 3 billion and 21 billion suns.
The high ratio
in the Coma cluster galaxies, located about 300 million light - years from Earth, suggests that they were massive enough to rival our own Milky Way but went dormant before they had the chance.
Constraints on diffuse gamma - ray emission from structure formation processes
in the Coma cluster
He has been a regular observer at Keck Observatory since 1997 studying elliptical galaxies, jets around NGC1097 and obtaining spectra of ultra compact dwarf galaxies
in the Coma Cluster.
In the 1930s, astronomer Fritz Zwicky first noticed that the motion of galaxies he was studying
in the Coma cluster couldn't be accounted for by the gravity from visible matter of stars, gas, and dust.
In each of the three bands, we have not detected a signature of the central excess component in contrast to the previous report on the det... ▽ More We have undertaken a search for the infrared emission from the intracluster dust
in the Coma cluster of galaxies by the Multiband Imaging Photometer for Spitzer.
Not exact matches
Inspired by van Dokkum's find, Stony Brook University's Jin Koda and colleagues looked through recent
Coma Cluster observations from the 8.2 - meter Subaru telescope
in Hawaii.
In the 1930s, however, the astronomer Fritz Zwicky discovered that the outer parts of the
Coma galactic
cluster were rotating far faster than the
cluster's estimated mass allowed.
In 1933, the Swiss astronomer Fritz Zwicky (pictured, right), working at the California Institute of Technology in Pasadena, applied this principle to the motion of galaxies that make up the Coma cluster, a group of over 1000 galaxies some 300 million light years from u
In 1933, the Swiss astronomer Fritz Zwicky (pictured, right), working at the California Institute of Technology
in Pasadena, applied this principle to the motion of galaxies that make up the Coma cluster, a group of over 1000 galaxies some 300 million light years from u
in Pasadena, applied this principle to the motion of galaxies that make up the
Coma cluster, a group of over 1000 galaxies some 300 million light years from us.
It didn't show up
in photographs, even
in silhouette, but there had to be a lot of this mysterious dark stuff — more than 10 times the mass of all the stars — to keep the
Coma cluster from spraying galaxies all over the cosmos.
The first hints of dark matter were found as far from the depths of the Soudan Mine as you can imagine:
in the
Coma galaxy
cluster, about 320 million light - years away.
These nearby objects include the Local Supercluster, a vast assemblage of galaxies to which our Galaxy, the Milky Way, belongs and the
coma cluster, a galaxy cluster that lies a few hundred million light years away in the constellation of Coma Bereni
coma cluster, a galaxy
cluster that lies a few hundred million light years away
in the constellation of
Coma Bereni
Coma Berenices.
Van Dokkum and his colleagues spotted it and its neighbours
in 2014, when they aimed the unique Dragonfly observatory at the
Coma cluster.
«Rich groups of galaxies like the
Coma Cluster are very, very rare, but there are quite a few galaxies the size of NGC 1600 that reside
in average - size galaxy groups,» Ma said.
The supermassive black hole found
in NGC 1600 is one of the first successes of the project, proving the value of a systematic search of the night sky rather than looking only
in dense areas like those occupied by large
clusters of galaxies, such as the
Coma and Virgo
clusters.
The newly discovered black hole is
in a galaxy, NGC 1600,
in the opposite part of the sky from the
Coma Cluster in a relative desert, said the leader of the discovery team, Chung - Pei Ma, a UC Berkeley professor of astronomy and head of the MASSIVE Survey, a study of the most massive galaxies and black holes
in the local universe with the goal of understanding how they form and grow supermassive.
«
In 1933 the late Fritz Zwicky pointed out that the galaxies of the Coma cluster are moving too fast: there is not enough visible mass in the galaxies to bind the cluster together by gravit
In 1933 the late Fritz Zwicky pointed out that the galaxies of the
Coma cluster are moving too fast: there is not enough visible mass
in the galaxies to bind the cluster together by gravit
in the galaxies to bind the
cluster together by gravity.
After a bunch of galaxies were quenched
in a collision with the
Coma cluster 7 to 10 billion years ago, why weren't their stars strewn across space?
Situated
in the southern part of constellation
Coma Berenices, it is one of the brighter spiral members of the Virgo
Cluster of Galaxies.
Seven to 10 billion years ago, a bunch of galaxies fell
in with a bad crowd at the
Coma cluster — a galactic group comprising thousands of their ilk.
These are the two main
clusters in the
Coma supercluster.
In the dense enviroment of the
Coma cluster there have probably been many galaxy mergers over billions of years, and the result is a
cluster with a very low number of spiral and irregular galaxies.
The protocluster is likely to evolve, over 12 billion years, into a system much like the nearby
Coma cluster of galaxies, shown
in the image below.
«The protocluster will very likely grow into a massive
cluster of galaxies like the
Coma cluster, which weighs more than a quadrillion suns,» said Purdue University astrophysicist Dr. Kyoung - Soo Lee, who initially spotted the protocluster and is one of the authors
in this study.
This picture was published
in newspapers and magazines around the world because it showed the
Coma cluster (looking like a strange stick - man figure) at the centre of a Great Wall of galaxies with a length of about six hundred million light years.