The Spectrum of a Galaxy Is Observed to Have an H

question 27

Essay

The spectrum of a galaxy is observed to have an H $\alpha$ emission line at a wavelength of 928.7 nm.What is its redshift? (Note that the rest wavelength of the H $\alpha$ emission line is 656.3 nm.)

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Definitions:

Consumption Bundle

A combination of different goods and services that an individual or a household consumes over a certain period.

Income On Food

The portion of an individual's or household's income that is spent on food and food-related expenses.

Shelter

A structure that provides cover or protection from weather, danger, or discomfort, often used as a term for housing or living spaces.

Budget Line

A graphical representation of all possible combinations of two goods that an individual can purchase with a given income, considering the prices of the goods.