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Stars
Chapter 9
13
Astronomy
12th Grade
02/15/2011

Additional Astronomy Flashcards

 


 

Cards

Term

 

 

OB Associations

Definition

Hottest PMS Stars

All are O or B

Term

Effects of OB Associations

 

Definition

Solar Wind                                         Scot

Cavities carved by Wind                 Calvins

Shockwave                                         Stirs

Star Birth                                            Sauce

Term
Stars with this mass have no helium flash
Definition
Mass>2
Term
This star converts their mass into Helium
Definition
Red Dwarf
Term
The Dimmest stars
Definition
Stars of mass .08-.4
Term
Helium Flash
Definition
When the force of gravity heats the core and the pressure does not increase resulting in no cooling which fuses helum.  The core gets hotter creating helium flash
Term
Star that begins life as a giant
Definition
Mass of .4-2 SM
Term
Hydrostatic Equilibrium
Definition
Balance of pressure and gravity
Term
What stage does a star move to when equilibrium is met?
Definition
MS
Term
What causes a star with a mass > .4SM to expand?
Definition
Ending of hydrogen fusion
Term
Helium Flash for stars >.4SM
Definition
Pressure caused by electrons being forces together but repelling eachother
Term
Another name for the Pauli Exclusion Principle
Definition
Helium Flash
Term
Cepheid Stars
Definition
Type of variable star
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