When a bigger star falls in on itself it keeps going to make a stellar black hole (“Black Holes: Facts”). The biggest black hole also known as the supermassive black hole is believed to be in the center of every galaxy even in the Milky Way (“Black Holes: Facts”). Also supermassive black holes are millions to billions of time... ... middle of paper ... ...e of the Schwarzchild black hole is the Kerr black hole which rotates instead of just standing still ("Black Holes." Black). The Kerr black holes rotation happens when the black hole was created ("Black Holes."
Talcott, R. (2010). A black hole caught in the act. Astronomy, 38(5), 25. Retrieved April 2, 2015, from Academic Search Premier database. Talcott, R. (2010).
The mass of a supermassive black hole is in relation to the mass of its galaxy’s bulge. Because of this it shows that the evolution and structure of a galaxy is tied to its black hole. If it weren’t for black holes there would be no human existence.
Star formation, evolution, and explosion is a continual process that imbues the interstellar medium with heavy elements and enables the formation of new stars. There would not be life on Earth without the elements generated by supernovae (McMillan, 2011). After a high-mass star explodes in a supernova all that is left intact is a relatively small, about the size of a small asteroid, very massive ball of neutrons. This remnant is called a neutron star, even though it is not actually a star. New neutron stars rotate very rapidly and have extremely strong magnetic fields with hot spots localized near the magnetic poles where radiation is emitted in concentrated beams of light that radiate through the cosmos like a revolving beacon.
Supernovas are extremely powerful explosions of radiation. A supernova can give off as much energy as a Sun can within its whole life. A star will release most of its material when it undergoes this type of explosion. The explosion of a supernova can also help in creating new stars. There are two types of ways a Supernova can be triggered.
If the mass of the star is between 1.44 and 3 solar masses then it will end up as a neutron star. These are extremely dense objects where the core of the star collapses under gravity. The gravity is so strong that the electrons and protons form to combine neutrons. On the other hand, if the mass of the star is greater than 3 solar masses than the degeneracy pressure is not enough to oppose its gravitational force, causing it to collapse in on itself. The gravity of a black hole is so strong that not even light can escape its pull.
supernova's what are they and where are they, what are these giant enigma's that scatter the universe. Supernova's come in all shapes and sizes, yet all of them are so bright that they can be seen from every point in the universe. A supernova is an extremely violent event but it is also the reason for everything we see around us. Every molecule in our universe was born from supernovae. They outshine entire galaxy's and can release trillions of times the amount of energy in our sun.
Main sequence stars growing into red giants and casting off outer layers create planetary nebulas. They are called planetary nebulas because nineteenth century astronomers, using primitive telescopes, thought they looked somewhat like the recently discovered Uranus and Neptune. Exploding massive stars at the end of their life span create ancient supernovas, which are also nebulas (Types of Nebulae, n.d.). All the stars in the universe were born in emission nebulas, extended clouds of hot, glowing interstellar gas. Astronomers believe that shock waves passing through interstellar matter initiates star formation, which happens when gravity starts... ... middle of paper ... ...Works Cited Brown dwarfs.
Black Holes An object that is so compact that light can’t escape its gravitational pull is called a black hole. The density of this object is extremely high; while it has a small mass, is called a singularity. Around the singularity point, there is an event horizon also known as the gravitational radius. The event horizon is the establish boundary where nothing can escape, there is no communications from the objects inside and outside. A black hole is formed when a massive star collapses on itself.
A bright star on Orion’s top-left section named as Betelgeuse is so massive that if it was placed where the sun is, it would swallow up Earth, Mars and Jupiter!2 Furthermore, a teaspoon full of Neutron star would weigh about “112 million tonnes” . Particular stars are known to be 600,000 times brighter than the sun ; thus a stars’ lifespan varies between 1 billion to 10 billion years 2.This essay will discuss a star’s journey from as little as a protostar (foetus) till the final stage as a black hole or a white dwarf (old age- death). Every star starts off as a protostar and grows its way into the main sequence (adulthood). A protostar is the birth of a star; they are large clouds of hydrogen, helium and dust. In addition, they are often found in groups of combined clusters at the same time.