Chapter 23

Announcements _NOTE DATE CHANGE OF FINAL!

We will have an online final that will open on July 21 12:01 AM (just after midnight) and close on July 23 11:00 PM.  It will be timed and there will be two attempts available.  There will be more information as we draw closer to the end of the course.  

Instructions

1. Take a look at videos linked below that discuss the topics in these two chapters (a total of five sections).

2. Complete Discussion 23 found here.  Instructions for completing Discussion 23 found here. Download here.

3. Complete Chapter 23 Quiz found here.

4. Additional information  for Ch 23 found here. Links to an external site.

Sections

23-1. The Death of Low-Mass Stars - (Low Mass Stars with Dr Phil found here Links to an external site.), (How Lower-Mass Stars Die found here Links to an external site.), and (Low Mass Star Life-cycle found here Links to an external site.)

23-2. Evolution of Massive Stars: An Explosive Finish - (Simulation Visualization of Massive Star Formation found here Links to an external site.),  (High Mass Star Lifecycle found here), Links to an external site.and (The Cosmic Classroom with Dr Margoniner found here Links to an external site.)

23-3. Supernova Observations - (Supernova Through the Eyes of HST found here Links to an external site.), (The Supernova of 1054, Our Very Special “Guest Star” found here Links to an external site.), (Supernova Observation First of its kind using NASA’s TESS found here Links to an external site.), and  (Supernova Visible to the Naked Eye in 1987 found here Links to an external site.)

23-4. Pulsars and the Discovery of Neutron Stars - (What are pulsars? found here Links to an external site.), (How do we know pulsars really exist? With Dr Anton found here Links to an external site.), and (When you get too close to a Pulsar-Neutron Stars with Drs Phil, Michelle, and Michio found here Links to an external site.)

23-5. The Evolution of Binary Star Systems - (Binary Star Systems found here Links to an external site.), (What If We Had Two Suns? found here Links to an external site.), and (How do Binary Star Systems Work? found here Links to an external site.)

23-6. The Mystery of Gamma Ray Bursts - (Gamma Ray Bursts: Crash Course Astronomy with Dr Phil found here Links to an external site.) and (Death From Space-Gamma Ray Bursts Explained found here Links to an external site.)