Black Holes Essay

A black hole has an event horizon. Event horizon, by definition is a boundary around a black hole beyond which no light or other radiation can escape; a point of no return (www.dictionary.com). A Schwarzschild radius is the radius of the boundary of... ... middle of paper ... ...t rotate it would collapse inward, like a star before a supernovae, and fall into the supermassive black hole. The Milky Way galaxy is approximately rotating at a speed of 270 kilometers per second. It take the sun about 220 million years to make a complete orbit around a galaxy.

One of the few remaining mysteries of science is the black hole. When a star runs out of fuel to keep it burning, it explodes into a supernova(Intro. to Black Holes 1) After a supernova, some of the matter that was blown off leaves in pockets to different places in space. These pockets contract to from a pulsar, or new born star. The rest of the matter left from the massive explosion of the supernova comes back together forming a neutron star.

Black holes have a power far greater than our minds can imagine. This report will go into further discussion on these massive holes in space. Now, though, astronomers have uncovered a much better candidate for a black hole in our galaxy. It lies in the constellation Monoceros some three or four thousand light-years away. Monoceros was discovered in 1975, when it emitted a shower of light and x-rays.

Scientist pre-Einstein could not comprehend how a wave such as light could hypothetically be influenced by a force such as gravity. However, when Einstein opened the door, black holes suddenly became a possibility, and it took a better half of a century before their existence could be proven, let alone monitored. Now, we have a better understanding of what black holes are, and how they come to be. Black holes are believed to be the result of the explosion of a very large star, at least 25 times larger than our own. When the star explodes, much of its matter is blown out into space, resulting in a supernova.

In conclusion, quasars and pulsars are beautiful, powerful, and slightly terrifying, celestial formations. Quasars are black holes consuming super dense star dust and emitting faint radio signals. Pulsars are the remnants of once great stars that have lost all of their neutrons. They spin at an extremely fast rate and release high intensity beams that “pulse” in and out of view. They are both fantastic and interesting phenomenons of the universe.

These black holes are about three times the mass of the sun. Supermassive black holes are billions times as massive than the sun. There are three possible ways a Supermassive black hole could be formed. The first way is when tiny black holes form together. The second way i... ... middle of paper ... ...iation destroying the information, it is contained in stimulated emission of radiation, which is in the Hawking radiation, and this radiation glows whenever information is taken by the black hole.

( Millis 2014) It is believed that super massive black holes exist in the cores of many large galaxies, including the Milky Way galaxy, which is our galaxy. (Swinburne University 2014). It is believed that a normal black holes were formed because of a supernova explosion of a gigantic star, meaning when huge stars collapse, so the larger the star, the larger the black hole. ( Millis 2014) . So therefore a simple idea of how a super massive black hole might have been formed would be because of a collision of super enormous star or a collision of star clusters (star clouds).

Cygnus X-1 is an example of a black hole detected through the observation of a binary x-ray ... ... middle of paper ... ...leted of its nuclear fuel and lost its outer layers. When a small to medium (less than 10 solar masses) main-sequence star begins to run out of fuel in its core, the core will begin to collapse where hydrogen on the edges of the collapsed core can be compressed and heated (Chandra 2012). The nuclear fusion of this new hydrogen will create a new gush of power that will make the outer layers of the star to expand out; this is known as the red giant phase. In the red giant phase over millions of years, all of the stars energy supplies are used up leaving behind a hot core that is still surrounded by the expanded outer layers. The outer layers are eventually expelled by stellar winds which end up creating a planetary nebula and the hot core left behind forms a white dwarf star where the pull of gravity is supported by degeneracy pressure (p. 538 Bennett en al.

Stars that start their lives with masses greater than about Model of Star’s internal process eight solar masses continue their nuclear burning and go on to produce such products as neon, magnesium, silicon, and sulfur. Eventually, silicon and sulfur ignite in the star's core to form iron and nickel. (Hansen, 1994) Various info about star at mature stage In conclusion, before I wrote this paper I would have to say that even though every night when I happen to glance upwards I see a whole bunch of stars, I never even had the slightest idea of where they came from until now. Stars come from these cosmic nurseries that scientists and astronomers refer to as nebulas in one of the oddest ways imaginable. I learned quite a bit about where stars come from and I hope to continue to learn even more about stars in the not so distant future.

Understanding Black Holes Our solar system consists of ten planets revolving around the Sun. The Sun serves as a magnet that uses its gravitational pull to hold the solar system together. If the Sun were to disappear, what would hold the planets together? The answer might be a black hole. A black hole is a theorized body whose gravity is so strong that even light can’t escape from within it (Shipman 64).