Core-Collapse Supernovae

Join this channel to get access to perks:
   / @jasonkendallastronomer  

This one has bad audio, please watch the revised and updated version of this video here:    • Module 9: Star Death  

Learning about the Stellar Evolution of massive stars, we explore the violent Type II Supernova. They explode when they try to fuse iron and nickel in their core, but cannot because these reactions and others near and past the "Iron Peak" have Binding Energies that are lower than for less-massive elements and isotopes. We examine Supernova 1987a as an odd example. When massive stars die, they go out with a huge bang. They seed the cosmos with their remains. The process by which they die is catastrophic and astonishing. This is part of my complete intro Astronomy class that I taught at Willam Paterson University and CUNY Hunter.

Stellar Evolution: http://chandra.harvard.edu/edu/formal...
Supernovae: https://en.wikipedia.org/wiki/Supernova
Type II Supernova: https://en.wikipedia.org/wiki/Type_II...
Iron Peak: https://en.wikipedia.org/wiki/Iron_peak
Binding Energy: https://en.wikipedia.org/wiki/Nuclear...
Supernova 1987a : https://en.wikipedia.org/wiki/SN_1987A
AAVSO Light Curve for SN 1987a: https://www.aavso.org/vsots_sn1987a
SNR 2014j in M82: https://en.wikipedia.org/wiki/SN_2014J
The Lund/LBNL Nuclear Data Search: http://nucleardata.nuclear.lu.se/toi/
Live Chart of Nuclides: https://www-nds.iaea.org/relnsd/vchar...
Stellar Nucleosynthesis: https://en.wikipedia.org/wiki/Stellar...

0:00 Introduction
1:37 Last Day of a Massive Star
3:52 Binding Energy per Nucleon
8:54 What gives off the energy of a star?
12:29 Iron Core Collapse
17:03 Catastrophic Collapse
18:40 Core Bounce
19:33 Post-Bounce Shockwave
21:11 New, Improved Shockwave
22:04 Supernova!
23:49 Supernova in M82
25:33 Another Supernova...
26:24 Supernova Explosions
27:24 Echoes of the Blast
31:52 Supernova 1987a's Vital Stats
38:15 AAVSO Visual Data for SN1987a
42:34 Details are still a Mystery
44:54 Nucleosynthesis
46:47 Top Ten Most Abundant Elements
47:43 Supernova Remnants
48:16 Stardust
49:33 From Ashes to Ashes, From Dust to Dust...