In the Self-Propagating Star Formation Theory

question 129

Multiple Choice

In the self-propagating star formation theory

• A) spiral arms are formed and sustained primarily by the actions of solar-mass stars because there are so many more of them than there are high-mass stars.
• B) spiral arms are poorly defined because they are formed and sustained primarily by the actions of short-lived massive stars.
• C) the passage of dust clouds through the spiral arms triggers star formation.
• D) spiral structure results with thin, well-defined arms.

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Definitions:

Complement

In probability and statistics, it refers to the event of something not happening, the counterpart to the occurrence of a specific event.

Independent

Two events are independent if the occurrence of one does not affect the probability of the occurrence of the other.

Independent

Refers to a characteristic where two events have no influence on each other's occurrence.

Mutually Exclusive

Two or more events that cannot occur at the same time.