How Do Astronomers Infer the Presence of Magnetic Fields in Molecular

question 41

Multiple Choice

How do astronomers infer the presence of magnetic fields in molecular clouds?

• A)by measuring the amount of interstellar reddening
• B)by measuring the Doppler shifts of emission lines from gas clumps in the cloud
• C)by measuring the infrared light emitted by the cloud
• D)by measuring the polarization of starlight passing through the cloud
• E)by measuring the amount by which gravity is reduced

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Definitions:

American Gothic

A painting by Grant Wood from 1930, depicting a farmer and his daughter standing in front of a house, iconic for its portrayal of rural American life.

Grant Wood

An American painter best known for his paintings depicting the rural American Midwest, particularly the painting "American Gothic."

Lancet Window

A tall, narrow window with a pointed arch at the top, commonly found in Gothic architecture.

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A form of mural painting associated with the Mexican Muralism movement, often conveying social and political messages.