The Surface Temperature of a Nearby Star Can Be Determined

question 65

Multiple Choice

The surface temperature of a nearby star can be determined MOST precisely by measuring what parameters?

• A) position of the star on the H-R diagram
• B) Doppler shift of the star's spectral lines
• C) relative strengths of emission lines from different atoms and ions in the star's spectrum
• D) relative strengths of absorption lines from different atoms (e.g., H, Ca) and molecules (e.g., TiO) in the star's spectrum

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Definitions:

Key

In Hymes’s ethnography of communication, the tone of speech or how the speech sounds—for example, formal or friendly.

Structural

Pertaining to the configuration or physical makeup of something, often reference to its construction or organization.

Focus Group Discussions

A qualitative research method involving guided discussions with a small group of people to explore their perceptions, opinions, beliefs, and attitudes towards a particular topic.

Focus Groups

A qualitative research method involving a small, diverse group of people whose reactions to specific discussions or ideas are studied.