How Can Astronomers Currently Determine the Temperature of an Extrasolar

question 31

Multiple Choice

How can astronomers currently determine the temperature of an extrasolar planet?

• A)estimate the temperature based on the planet's distance from the star
• B)measure the drop in total infrared light when the planet passes behind the star from our perspective
• C)use spectroscopy of the planet to identify the wavelength at which its emission peaks
• D)A and B
• E)B and C

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Definitions:

Return On Investment

A performance measure used to evaluate the efficiency of an investment by comparing its return to its cost.

Residual Income

The amount of income that an individual or company has after all required expenses and costs have been paid.

Minimum Required Rate

The lowest acceptable rate of return on an investment or project, often used in capital budgeting.

Return On Investment

A performance measure used to evaluate the efficiency or profitability of an investment in comparison to other investments.