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Table of contents

Astro 10-Lecture 6: Properties of Stars

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Slide 7

Views of the Galaxy Radio

Dark Nebulae

Interstellar Medium - Gas

Emission Nebulae

Reflection Nebulae

Collapse of a Protostar

Collapsing Interstellar Cloud

From Protostar to Star

Births of Stars

Formation Timescales

Evidence of Star Formation Theory

Slide 19

Stellar Evolution

Use theory to model the evolution

Rules of Stellar Evolution

Modelling Stellar Evolution

Main Sequence Lifetimes

ConcepTest discussion

Post-Main-Sequence Stars

“Post-MS” – He fusion

Red Giants

Red Giants – Now What?

Fate of “Low-Mass” Stars

“Low-Mass” Star: Evolutionary Track

Planetary Nebulae: Testing Theory

Slide 33

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White Dwarves

Degeneracy Pressure

White Dwarves (2)

Fate of “High-Mass” Stars

High-Mass vs Low-Mass

Fate of “High-Mass” Stars (2)

High-Mass fates (3)

Death of a High-Mass star

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Life-Cycle of “High-Mass” Star

Comparison of Life Cycles: Low-Mass vs High-Mass

Star Stuff!

Evidence on Origin of Elements

“Gas to Gas – Dust to Dust”

Massive-Star Supernovae: Theory

Slide 52

Why and How Bang?

SN: Predictions of Theory

SN: Observational Support

Supernova Remnants

Crab Supernova – 1054 AD

Crab Supernova Remnant

Slide 59

SN 1987A – In a nearby galaxy

Slide 76

SN 1987A – Expanding material AND neutrino detection!

SN 1987A – Light curve

SN 1987A More support for theory

TESTING Stellar Evolution Models

Star Clusters – Testing our Model

Star Clusters – Predictions (OH 85)

Estimating Ages

Star Clusters - Observations

Open Clusters

Globular Clusters

Author: Eric Korpela

E-mail: korpela at


Further information:
For the educational use of the Vista Astro 10 class only