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Death of sun-like Massive star death Elemental my dear Watson Novas Neutron Stars Black holes $ 200 $ 200$200 $ 200 $ 200 $400 $ 400$400 $ 400$400 $600 $ 600$600 $ 600 $ 600 $ 600 $800 $ 800$800800 $ 800 $ 800 $ 1000 $1000 $ 1000 $ 1000 $ 1000 $ 1000
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$200 Black dwarfs What are cooled off white dwarfs?
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$400 Planetary nebula What is the ejected envelope, often bipolar, of a red giant surrounding a white dwarf
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$600 No. It is a small mass star Will our sun become a supernova? Why or Why not?
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$800 Main sequence, giant, planetary nebula, white dwarf The order of the end of a sunlike star is:
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$1000 Helium build up in the core (less hydrogen in the core) and hydrogen burning shell expands What forces the evolution of a star off the main sequence?
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$200 once How many times can a star be a supernova?
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$400 It takes energy to fuse iron. An iron core cannot support a star because
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$600 It generates more heat and eventually collapses on itself A high-mass star dies more violently because?
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$800 During core collapse of a Type II supernova The heaviest nuclei are formed during what event
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$1000 Why is the 8 solar masses significant in stellar evolution? At 8 solar masses a star will go through a violent ending, forming a Type II supernova and ending in a nuetron star or balck hole
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$200 Hydrogen What is the element first fused to form stars?
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$400 Hydrogen and helium Nearly all the elements found in nature were formed inside stars, except for
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$600 nucleosynthesis The formation of heavier elements inside stars is called
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$800 Why is the depletion of hydrogen important? Once hydrogen is depleted it can no longer fuse hydrogen into helium. With no energy source to cause outware pressure the gravity is able to collapse the core and change the star’s structure.
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$1000 1. As a result of these, lighter elements are transformed into heavier elements. 2. shock waves can trigger star formation from supernova 3. they both have high mass stars. They both have ionized hydrogen. How are Type II supernovae and star forming regions related? (name 3 reasons)
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$200 Novas A surface explosion on a white dwarf, caused by falling matter from the atmosphere of its binary companion, creates what kind of object?
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$400 Nope Can a white dwarf and it’s companion star have multiple Type I supernovas?
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$600 Type I supernova If a white dwarf gains enough mass it can become a
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$800 Type II Supernova The making of abundant iron nuclei is typical of
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$1000 The sun is neither a binary star nor is it large enough to cause a supernova Can our sun cause a supernova? Why?
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$200 A young neutron star A star that has very rapid rotation and a strong magnetic field is
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$400 An object more massive than the sun but no larger than a city is a Neutron star
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$600 Pulsars These objects spin very rapidly when they are young
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$800 The Lighthouse model The name of the model where we see a beam sweep across us in a pulsar is called
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$1000 Whose work with SETI led to the discovery of pulsars in 1967? Jocelyn Bell
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$200 Black hole A “failed” supernova undergoes core collapse but instead of forming a neutron star like a Type II supernova it forms a black hole. A hypernova ends up as a
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$400 Theory of Relativity Gravity is the result of curved space is an explanation of what theory?
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$600 In the middle of galaxies The largest supermassive black holes are found________________.
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$800 Time slows down As an object nears and event horizon what happens to time?
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$1000 What would happen to someone falling into a stellar sized black hole Before the person enters the black hole, tidal forces would pull him or her apart.
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