BLACK HOLES

BLACK HOLE THEORY

• Nothing can escape Black holes
• Scientists can’t see black holes
• Black holes absorb dust to expand in mass

Types Of Black Holes

STELLAR

• Smallest size of black hole
• 3x and more of the sun’s mass
• Forms when a supernova happens

INTERMEDIATE

• Mid-size black hole
• Fairly recently discovered, not easily found
• Forms when stars in a cluster collides in a chain reaction

SUPERMASSIVE

• The biggest black hole, Billions-millions times greater than the sun’s mass
• They lie at the center of every galaxy
• Potentially formed by merging black holes, large gas clouds collapsing on themselves, or a stellar cluster collasping

BINARY BLACK HOLES

• 2 black holes progressively getting closer to each other
• May be formed from two black holes falling together, or two stars born together and die together
• Categorized like regular black holes

Parts of a Black Hole

EGROSPHERE

• Where the gravitational pull starts
• Objects can’t be stationary anymore
• Outside the event horizon

EVENT HORIZON

• “Black” part of the Black hole
• Speed of light gravitational pull
• Once a particle crosses the event horizon, it cannot escape

SINGULARITY

• The center-most region of the Black hole
• Where all the mass lies
• A single point in space time

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QUANTUM MECHANICS

• Each particle has an antiparticle
• If an antiparticle-particle pair forms just after the event horizon, one of the pair will be ejected
• The event horizon is reduced and the black hole can decay if this happens

LAST THINGS TO THINK ABOUT

• No black hole is close enough to destroy earth
• The sun is not big enough to create a black hole
• If you fell into a black hole, you would die before you reached the singularity
• Nothing would happen if a black hole the same mass as the sun replaced the sun

BIBLIOGRAPHY

• https://science.nasa.gov/astrophysics/focus-areas/black-holes
• https://www.space.com/15421-black-holes-facts-formation-discovery-sdcmp.htm...
• http://www.astronomysource.com/category/cosmos/black-holes/