About This Chapter
Basics of Star Death - Chapter Summary
Use this chapter to learn more about the life cycle of stars and how stars begin to die. Find details about supernovas, giant stars and white dwarfs.
These lessons will provide term definitions and illustrations to help you better understand about types of stars and supernovae and the process by which stars die and massive stars explode. Once you complete this chapter, you'll be able to:
- Detail the life cycle of supernovae and supergiant stars
- Discuss giant stars and helium fusion
- Explain how lower-main-sequence stars die
- Define planetary nebulae
- Provide details about red giant, horizontal and asymptotic giant branch stars
- Describe white dwarfs and the characteristics of stellar remnants
- Note how massive stars begin to die and explode
- List the different types of supernovae
This self-paced chapter allows you to study when it best fits your schedule with 24/7 accessibility of all lessons from any device. You can also print lesson transcripts to create quick-reference materials if needed. Brief self-assessment quizzes help you measure what you've retained and identify any topics you might need to further review.
1. Supernova and Supergiant Star Life Cycle
Learn about one of the biggest explosions known to humankind - a supernova. Follow a star's life cycle and learn how a star changes from a red giant to a supernova to a black hole or neutron star.
2. Giant Stars and Helium Fusion
This lesson will explain to you why a star nearing its end will become a giant star, and how the energy generating processes in its core will change as a result.
3. Helium Fusion and Degenerate Electron Pressure
Standard gas laws need not apply under the special circumstances described in this lesson with concepts like degeneracy, degenerate electron pressure, helium fusion, and the Coulomb barrier.
4. How Lower-Main-Sequence Stars Die
Not every star lives or dies the same way. Red dwarfs and medium-sized stars have key differences that determine their lifespan and how they die. This lesson will tell you why that is the case.
5. What Are Planetary Nebulae?
This lesson will define something very cool and beautiful called a planetary nebula. You'll not only learn what it is but how it's formed, and why it produces all those amazing colors!
6. Red Giant, Horizontal & Asymptotic Giant Branch Stars
This lesson will outline how stars of low to intermediate mass die as seen on the H-R diagram. We'll cover important key terms such as red giant branch stars, asymptotic branch stars, and horizontal branch stars.
7. What Are White Dwarfs? - Stellar Remnant Characteristics
White dwarfs are incredible little stellar remnants. Which begs the question, are they actually stars or not? This lesson will tell you if and why and how white dwarfs come to be. That, and you'll learns some incredible facts about them as well.
8. Binary Systems and Novae
This lesson will explain for you something known as the Algol paradox, what binary stars are, and how Roche lobes, the inner Lagrange point, novae, accretion disks, and novae are all involved in binary systems.
9. How Massive Stars Begin To Die
The ways massive stars and smaller stars evolve near their end are very different. This lesson will explain where they diverge, why, and what factors influence the beginning of the end for massive stars.
10. Supernova: How Massive Stars Explode
This lesson will explain how it is that a supernova comes to be by delving into how concepts like iron, core contraction, a core bounce, the strong force, and neutrinos all play a role in this event.
11. The Different Types of Supernovae
There are different types of supernovae, and this lesson will tell you what they are and what their differences are. We'll mainly focus on type II supernovae and types Ia and Ib supernovae.
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Other chapters within the DSST Astronomy: Study Guide & Test Prep course
- History of Astronomy Basics
- How Scientists Think and Work
- Overview of Light in Astronomy
- Overview of Newton's Laws in Astronomy
- The Orbits of Celestial Bodies
- The Earth, Sky, and Moon Basics
- The Moon: Formation & Phases
- The Sun's Structure & Components
- The Solar System: Layout, Formation & Dating
- Characteristics of Our Solar System's Planets
- Small Celestial Bodies & Satellites in Our Solar System
- Measurement of Star Qualities
- Star Types and Significance
- The Birth and Life of Stars
- Neutron Stars & Black Holes
- The Milky Way Galaxy
- Galaxies: Properties & Characteristics
- The Universe: Key Concepts & Theories
- Intro to Life in the Universe
- Celestial Navigation & Timekeeping
- Overview of Telescopes
- DSST Informational Resources
- DSST Astronomy Flashcards