How Can the Velocity Dispersion and Radius of an Elliptical

question 1

Essay

How can the velocity dispersion and radius of an elliptical galaxy determine its mass?

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A system of money in general use in a particular country or region.

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Financial contracts that represent a portion of the standard S&P futures contracts, making them accessible to more investors due to their smaller size.

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A standardized legal agreement to buy or sell something at a predetermined price at a specified time in the future, used as a financial instrument for hedging or speculation.