Suppose a Star Produces an Ultraviolet Photon During the Dark

question 65

Essay

Suppose a star produces an ultraviolet photon during the Dark Ages.The photon is emitted from a continuum source with a wavelength between the absorption lines of neutral hydrogen,but it is absorbed as it travels a long distance through the neutral hydrogen.Why?

---

Definitions:

Population Variance

A measure of the dispersion of a set of data points in a population, showing how much the data deviates from the mean of the population.

Population Proportion

A measure indicating the ratio of members in a defined category to the total population size.

Interval Estimate

A range of values derived from sample data within which a population parameter is estimated to lie, usually defined by two numbers representing the upper and lower limits.

Population Standard Deviation

A measure of the variability or dispersion of a population dataset, representing the square root of the variance.