Friday, April 15, 2016

White Dwarfs, Neutron Stars, and Black Holes By: Caleb Camby, Eddie Scott, and Michael Thompson


22 comments:

  1. When the planetary nebula is created where does the outer shell go once it is released?

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    1. The outer shell is expelled and will float away from the central region.

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  2. What tools are used to discover black holes?

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    1. Although we can't see black holes objects around them re used to detect them. For example surrounding stars; if you see them showing a wobbling motion but you can't see why then more than likely it's a black hole.

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    1. Neutron Stars?
      If so, then neutron stars are formed from star deaths. The star is originally 8 to 15 times the mass of our sun. The massive star will explode causing a supernova. After the explosion the inner core remains and becomes denser.

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    2. Neutron Stars?
      If so, then neutron stars are formed from star deaths. The star is originally 8 to 15 times the mass of our sun. The massive star will explode causing a supernova. After the explosion the inner core remains and becomes denser.

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  4. This comment has been removed by the author.

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  5. How long do black holes stay or are they there forever?

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    1. According to physicist Stephen Hawking black holes will eventually evaporate. This process will take an unimaginably long time.

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  6. If the density of black holes is so high how come everything around it isn't instantly sucked inside?

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    1. While a black hole is smaller and more dense than the star whose death birthed it, the gravitational pull will remain the same. For instance, if our sun became a black hole, the planets would simply continue to orbit it. Unless the star was already going to eat you, the black hole won't either.

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  7. Do the protons and neutrons really melt together to form neutrons in the core of neutron stars?

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  8. How is it determined whether a massive star becomes a neutron star or a black hole?

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    1. This is decided based on the star's mass, as when the fuel source is burned out, the remaining material collapses into itself. Stars around the size of our sun would turn into a white dwarf as there isn't enough material there to do anything else. Stars about 3 times larger than our sun will turn into neutron stars because their mass would be sufficient enough to force it to condense down. Stars roughly 3 times that size will turn into a black hole because their mass would be enough to force it to condense to an extreme point.

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  9. If the sun were to turn into a blackhole, would it supernova? Why or why not?

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    1. The sun does not have enough mass to either go into a supernova or turn into a black hole.

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  10. Approximately how large would a neutron start be?

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  11. We detect black holes by observing the way that they distort light around them. Light is made of photons which are still effected by gravity. This is also the reason that light cannot escape a black hole because the event horizon shifts gravity to where all directions will eventually curve to point inward.

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  12. Jocelyn Bell in 1967. She discovered a pulsar using a radio telescope. Pulsars are neutron stars that emit pulses of radiation similar to a lighthouse.

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