Exam 12: Evolution of Low-Mass Stars

When a star burns hydrogen in a shell,it will never produce as much energy (per unit time)as when it burns hydrogen in the core because the core has a higher temperature.

What types of chemical elements can low-mass stars contribute to the enrichment of the interstellar medium and how are they produced?

When a low-mass star becomes an AGB star and has a temperature of 3300 K,in which wavelength range will it shine the brightest?

Degenerate refers to a state of matter at:

What would you need to measure about a planetary nebula (see the image below)to determine how long ago its parent star died?

What is the shortest phase of evolution for a one solar mass star that we can visibly see?

What is "degenerate" in the degenerate core of a white dwarf?

Which star spends the longest time as a main-sequence star?

Explain the significance of Roche lobes in a binary system.

A nova is the result of which explosive situation?

Using the figure below,describe how the composition of the Sun varies by radius over time?

Which figure below represents the youngest star cluster?

The evolutionary cutoff between low- and high-mass stars occurs at approximately: