The "Normal" Mass of the Milky Way (Stars and Interstellar

question 64

Essay

The "normal" mass of the Milky Way (stars and interstellar medium together) is estimated at 100 billion-200 billion solar masses.The total mass of the galaxy measured by its rotation curve, however, is estimated in the interval of 1 trillion-1.5 trillion solar masses.How do we explain this discrepancy? What fraction of the Milky Way's mass is "normal"?

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Definitions:

Excess Zone

A situation where desired or necessary levels of something, such as production or capacity, are exceeded, leading to inefficiency or waste.

Directive Communication

A style of communication that focuses on clear, concise instructions and expectations, often used in leadership.

Assertiveness

The quality of being self-assured and confident without being aggressive, in expressing one’s rights, needs, and desires.

Communication Style

The way in which individuals express themselves and interact with others, which can vary greatly from person to person.