Most Supernova Remnants Can Be Observed Only at Nonvisible Wavelengths

question 271

Multiple Choice

Most supernova remnants can be observed only at nonvisible wavelengths.Explain.

• A) Supernova remnants are too cool to produce radiation at visible wavelengths.
• B) Supernova remnants are too hot to produce radiation at visible wavelengths.
• C) Visible wavelengths are produced by supernova remnants but they are blocked by the interstellar medium.
• D) All the visible wavelengths are Doppler shifted to infrared because all the supernova remnants are moving away from us at high speeds.

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Definitions:

Self-Actualization

The realization or fulfillment of one's talents and potentialities, often considered as a drive or need present in everyone.

Cattell

Raymond Cattell was a psychologist known for his work on personality theory and psychometrics, including the development of several personality tests.

Cattell

Refers to Raymond Cattell, a psychologist known for his work in personality, factor analysis, and the development of several personality assessments.

Freud

Sigmund Freud, an Austrian neurologist and the founder of psychoanalysis, a method for treating psychopathology through dialogue.