Which of the Following Is NOT an Argument for Cygnus

question 92

Multiple Choice

Which of the following is NOT an argument for Cygnus X-1's being a true black hole?

• A)Spectroscopic data suggests hot gas is flowing from the companion B star onto Cygnus X-1.
• B)The mass of the visible B star is even greater than Cygnus X-1, at around 25 solar masses.
• C)Cygnus X-1's mass is estimated to be about 10 solar masses.
• D)X-rays from Cygnus X-1 vary on time scales as short as a millisecond.
• E)X-ray observations around the object support a temperature of several million K.

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Definitions:

Bipolar Disorder

A mental disorder marked by significant mood swings including manic highs and depressive lows.

Manic-depressive

An outdated term for bipolar disorder, characterized by extreme mood swings from manic highs to depressive lows.

Hallucinations

Perceptions or sensory experiences that occur without an external stimulus, often seen in various psychiatric conditions.

Delusions

Fixed false beliefs that are maintained despite strong evidence to the contrary, often seen in psychiatric conditions.