The Period-Luminosity Relation Is Critical in Finding Distances With

question 97

Multiple Choice

The period-luminosity relation is critical in finding distances with:

• A)RR Lyrae stars.
• B)trigonometric parallaxes.
• C)spectroscopic parallaxes.
• D)Cepheid variables.
• E)pulsars.

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Definitions:

Capital Expenditure

Funds used by an organization to acquire, upgrade, and maintain physical assets such as property, industrial buildings, or equipment.