Supermassive Black Holes: a Scientific Theory? Summarize All of the Available

question 138

Essay

Supermassive Black Holes: A Scientific Theory? Summarize all of the available evidence that active galaxies are powered by supermassive black holes. Do your best to assemble enough evidence that this explanation should be considered a scientific theory in the sense outlined at the end of Section 3.4 (The Nature of Science)of Chapter 3. Do you think astronomers have met this challenge?

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Definitions:

Year-end UCC

The Undepreciated Capital Cost of an asset at the end of a fiscal year, relevant in tax calculations.

Net Capital Cost

The total cost of purchasing an asset including acquisition costs but net of any deductions, rebates, or subsidies.

Weighted Average Cost of Capital (WACC)

This is the average rate of return a company is expected to pay its security holders to finance its assets. WACC is the minimum return that a company must earn on an existing asset base to satisfy its creditors, owners, and other providers of capital.

Terminal Cash Flow

The final net cash flow in a series of cash flows, representing the net amount received or paid at the conclusion of a project or investment period.