PHY - Life cycle of stars
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8 Terms
What are the parameters to describe stars?
Mass
Luminosity
Color (temperature)
Composition
Radius
Metallisity
How are stars formed?
Nebula collapsing
Why protostars have a disk?
Legacy of the small rotation of the nebula. The more it collapse the faster it goes.
What are dark clouds.
Dense clouds before a protostar
What are evidence of star formation?
Dark clouds
Disk around protostar
Observation of star-forming regions
What is the Herztprung-Russel Diagram
Description of main sequence stars, plotting luminosity vs temperature of stars
Main sequence of a start
Longest part
Achieve hydrogen burning which is fusion
Achieve hydrostatic equilibrium
Explain the fate of a star
Lower mass becomes a red giant (H burning to He burning)
Higher mass explodes in supernova
Note 
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