Why Is It Thought That Quasars Probably Spend Only a Fairly

question 106

Multiple Choice

Why is it thought that quasars probably spend only a fairly short time in their highlyluminous phase?

• A)because there aren't many quasars around today
• B)because there aren't any quasars closer than about a redshift of 1
• C)because all quasars are at about the same epoch, narrowly defined in time
• D)because a black hole could not power a highly luminous quasar for more than a few millionyears
• E)because quasars are known to be the consumers of massive galaxies

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Definitions:

Capital Lease

A lease agreement that is recorded as an asset on the lessee's balance sheet because it essentially transfers the risks and rewards of ownership.

Capital Lease Obligation

A lease classified as a financial transaction where the lessee essentially buys an asset and borrows the funds through a lease.

Periodic Cash Payments

Regular financial payments made over a stipulated period, such as dividends or loan repayments.

Depreciation Expense

Methodically spreading out the expense of a physical asset across its period of usability.