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BLACK HOLES & SUPERNOVA
Transcript of BLACK HOLES & SUPERNOVA
Chemicals/Process of formation:
-The chemicals in a supernova is also the same as the star since it is the exploding reminisces of the star
- A supernova happens where there is a change in the core, or center, of a star. A change can occur in two different ways, with both resulting in a supernova.
The first type of supernova happens in binary star systems. Binary stars are two stars that orbit the same point. One of the stars, a carbon-oxygen white dwarf, steals matter from its companion star. Eventually, the white dwarf accumulates too much matter. Having too much matter causes the star to explode, resulting in a supernova.
The second type of supernova occurs at the end of a single star’s lifetime. As the star runs out of nuclear fuel, some of its mass flows into its core. Eventually, the core is so heavy that it cannot withstand its own gravitational force. The core collapses, which results in the giant explosion of a supernova. The sun is a single star, but it does not have enough mass to become a supernova.
Gravitational field & Life span:
-A supernova does not have a gravitational field but actual a gravitational shield that surrounds the explosion.
-a supernova only last 10 seconds since it is just an explosion.
-Temperature of a supernova about 100 billion kelvin, 6000 times the temperature of the sun's core.
-A supernova will start of as brilliant bright white, as it cools different parts of it will show in different colors of the spectrum depending on the amount and type of matter.
-Black holes are about Absolute Zero of - 273.15 Celsius
-It is not counter-intuitive. Black holes technically have no color, since we need visible light for us to perceive color, and black holes absorb all light. When we look at a black hole from where we are, we see a distortion of the space behind it and an empty black 'hole' in the center, which is what gives rise to its name.
Chemicals & Process of formation:
-Most black holes form from the remnants of a large star that dies in a supernova explosion. (Smaller stars become dense neutron stars, which are not massive enough to trap light.) If the total mass of the star is large enough (about three times the mass of the Sun), it can be proven theoretically that no force can keep the star from collapsing under the influence of gravity. However, as the star collapses, a strange thing occurs. As the surface of the star nears an imaginary surface called the "event horizon," time on the star slows relative to the time kept by observers far away. When the surface reaches the event horizon, time stands still, and the star can collapse no more - it is a frozen collapsing object.
-The chemical makeup of a Black hole is the same as a high mass star, since it also formed from a high mass star.
Gravitational field & Life span:
-Black holes have such a strong gravitational field that is why light cannot escape it, that is why they suck up everything around it.
-About a black hole of average size it would take roughly 1.2x10^67 earth years to die out which is 12,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 years
Ms. Wilkerson 6th
"Black Holes - NASA Science." Black Holes - NASA Science. Web. 6 Feb. 2015