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 ?
The galaxy lives near the center of the Perseus cluster of over 1,000 galaxies, located 240 million light-years away.
The ancient galaxy resides near the heart of the Perseus cluster, which is home to over 1,000 galaxies, and is located 240 million light years away.
To find NGC 1275, start at Beta ([beta]) Perseus (Algol), and star-hop 2[degrees] to the east-northeast through the Perseus Cluster.
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 relationship between the optical Ha filaments and the X-ray emission in the core of the Perseus cluster, MNRAS 344, L48 (2003).
The sound comes from the Perseus Cluster, a clump of galaxies 250million light-years away.
5 keV in XMM-Newton observations of the galaxy M31 and the outskirts of the Perseus cluster, confirming the Bulbul et al.
About 30 galaxy clusters are known to harbor, embedded within their centers, a radio structure called a "mini-halo," and the largest of these known mini-haloes is the one in the Perseus Cluster, over 250 million light-years away from Earth.
Another Perseus cluster requires a larger telescope to properly appreciate: NGC 1245.
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.