Spectroscopic Binaries Are Difficult to Analyze Because

question 13

Multiple Choice

Spectroscopic binaries are difficult to analyze because

• A) we can t measure the radial velocities of each star in the system.
• B) we can t see the shape or tilt of the orbit.
• C) we can t find the diameters of the stars.
• D) we can t determine the luminosities of the stars.
• E) the Doppler shift is not measurable.

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Definitions:

Indifference Curve

A graph representing different bundles of goods between which a consumer is indifferent, showing preferences and trade-offs.

Consumption Bundle

A set of goods or services that a consumer considers purchasing with a given budget.

Horizontal Axis

In a graph or chart, the x-axis, which typically represents the independent variable or the base measure for comparative analysis.

Indifference Curve

A graph that shows a combination of two goods that give a consumer equal satisfaction and utility, thereby making the consumer indifferent between the two combinations.