The Spectrum of a Galaxy Is Observed to Have an Hα

question 13

Essay

The spectrum of a galaxy is observed to have an Hα emission line at a wavelength of 928.7 nm.What is its redshift? Note that the rest wavelength of the Hα emission line is 656.3 nm.

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Definitions:

Intra-Company

Pertaining to activities or transactions occurring within the same company, often involving different departments or divisions.

Professionalism

Entails the conduct, aims, or qualities that characterize or mark a profession or a professional person.

Labeling

The process of assigning a descriptor or category to individuals or groups which can influence how they are perceived and act.

Power Play

A strategic move or action taken by an individual or group to consolidate, assert, or increase their influence or control over others.