What Do We Know About the Geometry of the Dark

question 35

Multiple Choice

What do we know about the geometry of the dark matter distribution in the vicinity of the Milky Way Galaxy?

• A) It appears to be a lens-shaped disk like the Galaxy's disk of visible stars,only larger.
• B) It appears to be a spherical halo.
• C) Dark matter,including that near the Milky Way Galaxy,appears to be part of a uniform density distribution,which fills all of space.
• D) The geometry of the dark matter distribution,like its constituents,is totally unknown at the present time.

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Definitions:

Cash-Flow Hedge

A financial strategy used to manage risks associated with the fluctuations in cash flows due to changes in exchange rates, interest rates, or commodity prices.

Cost of the Hedge

The total expenses associated with establishing and maintaining a hedge, including transaction fees and the difference in interest costs.

Forward Contract

A personalized agreement where two parties agree to buy or sell an asset at an agreed-upon price at a later date.

Derivative Instrument

A derivative instrument is a financial contract whose value is dependent on the performance of underlying assets, indexes, or rates.