How Has the Hot, X-Ray-Emitting Intergalactic Gas in Galaxy Clusters

question 117

Multiple Choice

How has the hot, X-ray-emitting intergalactic gas in galaxy clusters affected the dark matter problem for the clusters?

• A) The gas supplies the mass needed to solve the problem, which is now no longer a problem!
• B) The gas supplies about 10 times too much mass-now the problem is how clusters so massive are not much more compact.
• C) The gas supplies about 2/10 of the dark matter, so with the visible matter, about 7/10 of the mass required to stabilize the cluster is still missing.
• D) The gas is very tenuous and supplies almost no mass at all; therefore, it has almost no effect on the dark matter problem.

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Definitions:

Perceptions

The process of organizing, identifying, and interpreting sensory information to represent and understand the environment or an element within it.

Naturalistic Observation

A research method in which subjects are observed in their natural environment without any manipulation by the experimenter.

Recycling Bins

Containers designated for the collection of recyclable materials, such as paper, plastic, and metal, to be processed and reused, contributing to environmental sustainability.

Cafeteria

A type of food service location in which there is little or no waiting staff table service, with food provided on a self-service basis.