Absorption-Line Strengths Are Used in the Spectral Classification of Stars

question 87

Multiple Choice

Absorption-line strengths are used in the spectral classification of stars and the determination of surface temperatures.Which atomic or molecular constituent exhibits strong absorption lines in spectra from stars with very high surface temperature?

• A) H
• B) Ca II
• C) He II
• D) TiO

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Definitions:

Defense Mechanism

Psychological strategies used unconsciously by individuals to protect themselves from anxiety arising from unacceptable thoughts or feelings.

Neo-Freudian Psychologist

A psychologist belonging to a movement that adapted and extended Freud's theories, focusing more on social and cultural factors for personality.

Collective Unconscious

Carl Jung's concept of a part of the unconscious mind that is derived from ancestral memory and experience and is common to all humankind.

Inferiority

Feeling lower in status or quality compared to others, which can impact an individual's self-esteem and motivations.