If the Central Engine of a Double-Lobed Radio Source Is

question 244

Multiple Choice

If the central engine of a double-lobed radio source is a black hole swallowing matter from an accretion disk,where do the jets of matter come from that we see traveling outward from the galaxy?

• A) The jets are accelerated in the ergoregion of the rotating black hole and ejected outward in the black hole's equatorial plane.
• B) The jets are composed of material that has been accelerated from two hemispheres toward the black hole with such speed that it escapes again on two opposite sides of the black hole.
• C) The jets arise in the weak galactic magnetic field, not in the region near the black hole.
• D) The jets are squirted out by high pressure in the accretion disk before the matter reaches the black hole.

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Definitions:

Bottom-Up Processing

A perception approach where processing starts with sensory input and works up to the formation of a perception.

Telepathy

A supposed method of communication from one mind to another without using sensory channels or physical interaction.

Subliminal Stimuli

External stimuli that are below the threshold for conscious perception, yet can influence thoughts, feelings, or actions.

Selective Perceptions

The psychological process by which individuals perceive what they want in media messages while ignoring opposing viewpoints.