What Is the Name of the First X-Ray Binary That

question 145

Multiple Choice

What is the name of the first X-ray binary that was confirmed to include a black hole?

• A) Cygnus X-1
• B) Sag A*
• C) SS 433
• D) GW170817

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Definitions:

Industry

A sector of the economy characterized by a specific type of activity or product, such as manufacturing, technology, or services.

Firms

Business organizations that produce goods or provide services with the aim of making a profit.

Resources

Assets, materials, and inputs needed for the production of goods and services, including natural, human, and capital resources.

Market System

A market-based economic system where decisions about investment, production, and the allocation of goods are driven by the dynamics of supply and demand, with goods and services' prices being freely determined.