A 15-Solar-Mass Star Explodes as a Supernova but Astronomers Are

question 78

Multiple Choice

A 15-solar-mass star explodes as a supernova but astronomers are unable to find a visible compact object within the remnant. What is the most likely explanation?

• A) The supernova created a black hole.
• B) The supernova completely destroyed the star, leaving nothing behind.
• C) The supernova created a pulsar but it is not visible from Earth because of the direction of its rotational axis.
• D) The supernova created a pulsar but it is not visible from Earth because it is too old to generate detectable radio beams.

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Definitions:

Dividend Per Share

The amount of dividend that a company pays out to each shareholder for each share they own.

Retention Ratio

The retention ratio is a financial metric indicating the percentage of a company's profits that are reinvested in the business rather than distributed as dividends to shareholders.

EPS

Earnings Per Share (EPS) is a financial ratio that measures the amount of net income earned per share of stock outstanding.

Stock Split

A corporate action in which a company divides its existing shares into multiple shares to boost the liquidity of the shares, though the overall market capitalization remains the same.