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Astronomers Create Radio Map of Perseus Galaxy Cluster 5nvklj





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Astronomers Create Radio Map of Perseus Galaxy Cluster

Dragon
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Astronomers Create Radio Map of Perseus Galaxy Cluster Empty Astronomers Create Radio Map of Perseus Galaxy Cluster

Post by Dragon Mon Jan 04, 2021 7:34 pm

Astronomers using NSF’s Karl G. Jansky Very Large Array have produced a high-resolution map of the Perseus cluster, a collection of thousands of galaxies approximately 240 million light-years from Earth.

Approximately 11 million light-years across and located 240 million light-years away, the Perseus cluster is named for its host constellation.

Also known as Abell 426, it is one of the most massive objects in the observable Universe, containing over 1,000 galaxies immersed in a vast gas cloud.

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Astronomers Create Radio Map of Perseus Galaxy Cluster Empty Re: Astronomers Create Radio Map of Perseus Galaxy Cluster

Post by Dragon Mon Jan 04, 2021 7:36 pm

Astronomers Create Radio Map of Perseus Galaxy Cluster Image_9213_1-Perseus-Cluster
Image credit: Gendron-Marsolais et al., doi: 10.1093/mnras/staa2003.

The central part of the total field of view of the VLA radio map of the Perseus cluster. NGC 1275 is the bright source in the middle of the image.

The wide-angle tail radio galaxy NGC 1265 (NNW of NGC 1275) and the head-tail CR 15 (between NGC 1275 and IC 310), as well as IC 310 (WSW of NGC 1275) are clearly visible.

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Astronomers Create Radio Map of Perseus Galaxy Cluster 334pu7m

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Post by Dragon Mon Jan 04, 2021 7:37 pm

Astronomers Create Radio Map of Perseus Galaxy Cluster Image_9213_2-Perseus-Cluster
Image credit: Gendron-Marsolais et al. / S. Dagnello / NRAO / AUI / NSF / Sloan Digital Sky Survey.

Left: NGC 1275, at the core of the cluster, is seen in new detail, including a newly-revealed wealth of complex, filamentary structure in its radio lobes.

Center: NGC 1265 shows the effects of its motion through the tenuous material between the galaxies; its radio jets are bent backward by that interaction, then merge into a single, broad tail; the tail then is further bent, possibly by motions within the intergalactic material.

Right: the jets of IC 310 are bent backward, similarly to NGC 1265, but appear closer because of the viewing angle from Earth; that angle also allows astronomers to directly observe energetic gamma rays generated near the supermassive black hole at the galaxy’s core.

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Astronomers Create Radio Map of Perseus Galaxy Cluster 334pu7m

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Post by Dragon Mon Jan 04, 2021 7:38 pm



Combining data from NASA's Chandra X-ray Observatory with radio observations and computer simulations, scientists have found a vast wave of hot gas in the nearby Perseus galaxy cluster.

Spanning some 200,000 light-years, the wave is about twice the size of our own Milky Way galaxy.

The researchers say the wave formed billions of years ago, after a small galaxy cluster grazed Perseus and caused its vast supply of gas to slosh around an enormous volume of space.


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