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Abell 1775: Chandra catches slingshot during collision 5nvklj





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Abell 1775: Chandra catches slingshot during collision

Dragon
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Abell 1775: Chandra catches slingshot during collision Empty Abell 1775: Chandra catches slingshot during collision

Post by Dragon Thu Jul 15, 2021 10:32 pm

When the titans of space—galaxy clusters—collide, extraordinary things can happen.

A new study using NASA's Chandra X-ray Observatory examines the repercussions after two galaxy clusters clashed.

In a new study of the galaxy cluster Abell 1775, located about 960 million light years from Earth, a team of astronomers led by Andrea Botteon from Leiden University in the Netherlands announced that they found a spiral-shaped pattern in Chandra's X-ray data.

These results imply a turbulent past for the cluster.

When two galaxy clusters of different sizes have a grazing collision, the smaller cluster will begin to plow through the larger one.

(Because of its superior mass, the bigger cluster has the upper hand when it comes to gravitational pull.)

As the smaller cluster moves through, its hot gas is stripped off due to friction. This leaves behind a wake, or tail, that trails behind the cluster.

After the center of the smaller cluster passes by the center of the larger one, the gas in the tail starts to encounter less resistance and overshoots the center of its cluster.

This can cause the tail to "slingshot" as it flies to the side, curving as it extends away from the cluster's center.


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Abell 1775: Chandra catches slingshot during collision 334pu7m
Dragon
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Post by Dragon Thu Jul 15, 2021 10:35 pm

Abell 1775: Chandra catches slingshot during collision Abell-1775-chandra-cat
Credit: X-ray: NASA/CXC/Leiden Univ./A. Botteon et al.; Radio: LOFAR/ASTRON; Optical/IR:PanSTARRS

The newest Chandra data contains evidence—including the brightness of the X-rays and the temperatures they represent—for one of these curving "slingshot" tails.

Previous studies of Abell 1775 with Chandra and other telescopes hinted, but did not confirm, that there was an ongoing collision in this system.


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Abell 1775: Chandra catches slingshot during collision 334pu7m
Dragon
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Abell 1775: Chandra catches slingshot during collision Empty Re: Abell 1775: Chandra catches slingshot during collision

Post by Dragon Thu Jul 15, 2021 10:35 pm



Chandra Catches Slingshot During Collisio


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Abell 1775: Chandra catches slingshot during collision 334pu7m
Dragon
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Abell 1775: Chandra catches slingshot during collision Empty Re: Abell 1775: Chandra catches slingshot during collision

Post by Dragon Thu Jul 15, 2021 10:37 pm



Chandra Catches Slingshot During Collision


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Abell 1775: Chandra catches slingshot during collision 334pu7m

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