Perseus cluster


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Perseus cluster

(Abell 426) A rich cluster of galaxies lying about 70 megaparsecs away in the direction of the constellation Perseus. It is the brightest cluster observed in the X-ray waveband. It also contains several strong radio sources, three of which have been identified with the galaxies IC 310, NGC 1265, and NGC 1275. The most intense radio source (3C84A or Perseus A) is associated with the dominant cD galaxy, NGC 1275. This lies at the center of the cluster's cooling flow, which has a mass deposition rate of around 200 solar masses a year (see clusters of galaxies). NGC 1275 shows nuclear continuum activity (it was originally classified as a Seyfert galaxy) and is surrounded by a particularly extensive (up to 40 kiloparsecs in radius) nebula of line-emitting filaments. HST images show it is also surrounded by many globular clusters. Study of the galaxy is complicated by the presence of an intervening disk galaxy, with its own emission-line spectrum, that is falling toward NGC 1275 along the line of sight at 3000 km s–1.

Perseus cluster

[′pər·sē·əs ‚kləs·tər]
(astronomy)
An irregular, diffuse cluster of galaxies centered on the Seyfert galaxy NGC 1275, with redshift z = 0.018
References in periodicals archive ?
In contrast, the nearby Perseus cluster is a cool core cluster whose intracluster gas is a relatively mild several million degrees Celsius.
PERSEUS CLUSTER: A mysterious X-ray signal from the Perseus cluster of galaxies, which researchers say cannot be explained by known physics, could be a key clue to the nature of Dark Matter.
Just over 230 million light-years away in the Perseus cluster, the galaxy NGC 1277 formed all of its stars in a quick burst roughly 10 billion years ago--less than 4 billion years after the Big Bang.
In particular, the researchers looked at iron distribution throughout the Perseus cluster, a large grouping of galaxies about 250 million light-years away.
The sound comes from the Perseus Cluster, a clump of galaxies 250million light-years away.
WASHINGTON (CyHAN)- A mysterious X-ray signal from the Perseus cluster of galaxies, which researchers say cannot be explained by known physics, could be a key clue to the nature of Dark Matter.
But last November, a study in Nature described a gargantuan black hole, 17 billion times the mass of the sun, at the center of a seemingly run-of-the-mill galaxycalled NGC 1277 that is 250 million light-years away in the Perseus cluster.
With its black hole not producing powerful enough jets, the center of the Phoenix cluster is buzzing with stars that are forming about 20 times faster than in the Perseus cluster.
This would resemble the larger scale feedback, observed on galaxy cluster scales, from active black holes interacting with the surrounding gas, as seen in objects like the Perseus Cluster.
168) and those in the gas of the Perseus Cluster ("A Low Note in Cosmos: Sounding out a new role for black holes," SN: 9/13/03, p.
NASA's Fermi Gamma-ray Space Telescope sees NGC 1275, the core member of the Perseus cluster of galaxies, as a source of high-energy gamma rays, but the earlier Compton mission did not.
Fabian of the University of Cambridge in England and his colleagues made their discovery by examining the bright X-ray glow from gas that bathes the Perseus cluster of galaxies, 250 million light-years from Earth.