A Binary Star System Is One with Two Stars Orbiting

question 88

Essay

A binary star system is one with two stars orbiting each other. How can the Doppler effect be used to find binary stars whose orbital plane is along our line of sight and determine their periods?

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Definitions:

Subsidies

Financial support provided by the government to businesses, individuals, or other governmental bodies, intended to encourage production, reduce prices, or support activities deemed beneficial.

Foreign Firms

Companies that operate in a country other than where their headquarters are located.

Import Tariff

A tax imposed by a government on goods and services imported from other countries, intended to protect domestic industries and adjust trade balances.

Import Quota

A limit imposed by a nation on the quantity (or total value) of a good that may be imported during some period of time.