What Makes Us Think That the Star System Cygnus X-

question 104

Multiple Choice

What makes us think that the star system Cygnus X- 1 contains a black hole?

• A)Cygnus X- 1 is a powerful X- ray burster, so it must contain a black hole.
• B)The fact that we see strong X- ray emission tells us that the system must contain a black hole.
• C)No light is emitted from this star system, so it must contain a black hole.
• D)It emits X- rays characteristic of an accretion disk, but the unseen star in the system is too massive to be a neutron star.

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Definitions:

Institutional Memory

The collective knowledge and history held within an organization, enabling it to learn from past experiences and decisions.

Hidden Cost

Expenses not immediately apparent or obvious when purchasing or investing in something, often becoming clear later on.

Product Quality

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Service Quality

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