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:

International Finance Corporation

A member of the World Bank Group focused on private-sector development in less developed countries.

Infrastructure Loans

Financial borrowing intended for the construction, improvement, or maintenance of essential public works like roads, bridges, and utilities.

Tariffs

Taxes imposed on imported goods, typically to protect domestic industries, raise revenue, or regulate trade.

Import Quotas

Restrictions set by a government on the amount of a particular good that can be imported into a country within a given timeframe.