What Is the Motion of Stars in the Bulge Across

question 6

Multiple Choice

What is the motion of stars in the bulge across the inner part of the Milky Way Galaxy?

• A) The stars move in roughly circular orbits.
• B) The stars oscillate back and forth across the bulge, retracing the same path again and again.
• C) The stars are part of a density wave that moves around the galactic center.
• D) The stars basically remain stationary within the bulge.

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Definitions:

Experimenter Bias

A form of bias introduced by the expectations or beliefs of the experimenter affecting the outcomes of an experiment.

Flinch

A quick, involuntary movement or draw back, often from fear or pain.

Random Assignment

The process of allocating individuals randomly to groups in an experimental study to ensure that each group is similar at the start of the study, reducing bias and increasing the validity of the results.

Positive Correlation

A connection between two variables wherein a rise in one leads to a rise in the other.