Shared Flashcard Set

Details

Stars and Galaxies
N/A
17
Astronomy
Undergraduate 1
05/03/2009

Additional Astronomy Flashcards

 


 

Cards

Term
High-mass stars will in a gigantic explosion, called a:
Definition
Supernova
Term
Sun-like stars form a degenerate core of __________ and ___________.
Definition
carbon and oxygen
Term
Stars like our sun are constantly losing mass in a:
Definition
stellar wind
Term
The "final breath" of a sun-like star is a:
Definition
Planetary Nebulae
Term
When a Sun-like star builds a large enough carbon-oxygen core, the core collapses, and the matter becomes degenerate.
Definition
White Dwarfs
Term
The more massive a white dwarf is the ________ it is.
Definition
smaller
Term
White dwarfs have low ___________ and high ______________.
Definition
luminosity and temperature
Term
In a binary system, each star controls a finite region of space, bounded by the ____________.
Definition
Roche Lobes
Term
Where are white dwarfs found in the H-R diagram?
Definition
in the lower corner of H-R diagram
Term
The Sun will expand to a red giant in about _________ years.
Definition
5 billion
Term
What will the core of the Sun become at the end of its life?
Definition
white dwarfs
Term
When the Sun expands to red giant, what will happen to Earth?
Definition
Earth will be incinerated
Term
High mass stars live _______ and _______ lives.
Definition
short and violent
Term
The collapse of a massive star is a type ___ supernova
Definition
II
Term
When a white dwarf collects too mch mass, it will collapse and produce a type ____ superanova.
Definition
1a
Term
Once the core of a massive star fills with iron, it collapses, triggering a:
Definition
supernova
Term
Several hundreds to thousands of year after a supernova, the ejected material is still visable as:
Definition
Supernova Remnants
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