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Test 3
N/A
39
Astronomy
Undergraduate 2
11/21/2011

Additional Astronomy Flashcards

 


 

Cards

Term
In an HR Diagram, the hotter stars are to the ____?
Definition
Left
Term

Which of the following starts is likely to be the hottest?

 

Definition
Sirius B, Raguel, Regulus
Term
Which of the follwing stars is likely to be the largest?
Definition
Betelgense, Antares
Term
What provides the fuel for a main sequence star?
Definition
Hydrogen burning
Term
What are the principle end products of Helium burning?
Definition
C12 and O16
Term
Which of the following is NOT produced in Hydrogen burning?
Definition
O16 or C13
Term
Which type of star is the sun?
Definition
G-type main sequence star
Term
What is the primary fuel source for the sun?
Definition
Hydrogen burning
Term
Approximately how many years will the sun remain in it's present stage?
Definition
4.5-5.5 billion years
Term
At which of the following locations is He4 NOT created?
Definition
Helium or Neon burning
Term
In our frame of reference, how old is the sun?
Definition
4.5 billion years
Term
Which of the following burning stages is shortest?
Definition
Silicon, Oxygen, Neon
Term
Which of the following burning stages is longest?
Definition
Hydrogen, Helium, Carbon
Term
Which of the following reactions is the correct order of the burning stages for a 15 solar mass star
Definition
H,He,C,Ne,O,Si
Term
Which of the following is produced in Carbon burning?
Definition
Ne, Na, Mg
Term
Which of the following is NOT produced during oxygen burning?
Definition
Al-Sc
Term
Which of the following is produced in Neon burning?
Definition
O, Mg
Term
For which of the following reactions are the p-p chains named?
Definition
p + p → d + e+ + ve
Term
Which of the following is a list of elements produced by the S-process?
Definition
Colbalt-Bismuth
Term
Which of the following is a list of elements produced by the R-process only?
Definition
Ur-Th
Term
Which of the following is a list of elements produced by the reactions between cosmic rays and Carbon, Oxygen, and Nitrogen?
Definition
Lithium, Ber, and Boron
Term
Other than Hydrogen and Helium, what are the most common elements in the universe?
Definition
Carbon, Oxygen, Nitrogen, Neon, and Iron
Term
Which nuclide is the most stable?
Definition
56Fe
Term
What will be the final fate of the sun?
Definition
C-O white dwarf
Term
What is the temperature during Oxygen burning?
Definition
2.3 billion
Term
What is the temperature during Silicone burning?
Definition
4.1 billion
Term
What is the temperature during Neon burning?
Definition
1.7 billion
Term
The sun will die sooner than will a blue giant.
Definition
False
Term
Lead (Pb) is the heaviest stable element.
Definition
False
Term
Colbalt (Co) is formed during Silicon burning.
Definition
True
Term
During certain stages, stars do not get energy from gravitational contraction.
Definition
True
Term
The sun will begin its next core burning stage explosively.
Definition
True
Term
19F is produced in the CNO cycle.
Definition
True
Term
Oxygen burning occurs before Neon burning since Oxygen has only 8 protons, while Neon has 10.
Definition
False
Term
During Neon burning, two Neon nuclei combine to form Uranium.
Definition
False
Term
The core of the sun is colder than its surface.
Definition
False
Term
Most solar nuetrinos detected on the Earth come from the p-p chain III.
Definition
True
Term
4He is a product of Hydrogen burning.
Definition
True
Term
The sun will eventually form a planetary nebula.
Definition
True
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