Black Holes
This essay will explain what a black hole is along with how black holes can be detected and how black holes are formed. Moreover, this essay will also provide evidence of the existence of black holes and locate where in the universe black holes occur.
Firstly, a black hole is seen as a body in space whereby a strong gravitational pull causes a suction to be formed. The strength of the gravitational pull is so significant due to the different forms of matter being squeezed into a small hole which hence, creates pressure. The pull is described as “so large” as speeds such as light, which travels at approximately 299 metres per second, is unable to escape this powerful pull of gravity and nothing is able to escape past the black hole’s boundary called the event horizon (Irshad, S., 2009). The event horizon is approximately 30 kilometres in diameter; there is no return past this. As a result of this, this conveys that many other objects in space such as dying stars or planets can easily disappear in black holes; nothing is seen to be able to escape a black hole therefore, because of this there is no information which has currently been gathered by man. However, with recent advance in technology, there may be missions in the nearest future to examine and retrieve further data and information on black holes. Research and observations made by astronomers such as Karl Schwarzschild (Barnes, D) show that black holes form due to dying stars whereby it collapses to the point where there is zero volume and infinite density, this is also known as singularity, a collapsed core (Smith, H. R.). Black holes are also able to merge with other black holes to form a super massive black hole, this is present in the centres of most galaxies (Wikipedia).
Source: Cambridge Relativity
The process at which black holes are made simply only involve the cores of stars. The size of the core of the star is essential in determining whether a dying star will form into a black hole, a white dwarf
Firstly, a black hole is seen as a body in space whereby a strong gravitational pull causes a suction to be formed. The strength of the gravitational pull is so significant due to the different forms of matter being squeezed into a small hole which hence, creates pressure. The pull is described as “so large” as speeds such as light, which travels at approximately 299 metres per second, is unable to escape this powerful pull of gravity and nothing is able to escape past the black hole’s boundary called the event horizon (Irshad, S., 2009). The event horizon is approximately 30 kilometres in diameter; there is no return past this. As a result of this, this conveys that many other objects in space such as dying stars or planets can easily disappear in black holes; nothing is seen to be able to escape a black hole therefore, because of this there is no information which has currently been gathered by man. However, with recent advance in technology, there may be missions in the nearest future to examine and retrieve further data and information on black holes. Research and observations made by astronomers such as Karl Schwarzschild (Barnes, D) show that black holes form due to dying stars whereby it collapses to the point where there is zero volume and infinite density, this is also known as singularity, a collapsed core (Smith, H. R.). Black holes are also able to merge with other black holes to form a super massive black hole, this is present in the centres of most galaxies (Wikipedia).
Source: Cambridge Relativity
The process at which black holes are made simply only involve the cores of stars. The size of the core of the star is essential in determining whether a dying star will form into a black hole, a white dwarf
References: Barnes, Daniel, 2005, University of Alaska Fairbanks, Accessed 10th May 2012, <http://ffden-2.phys.uaf.edu/212_fall2003.web.dir/daniel_barnes/page2.htm> Miller, Chris, 2003, Eclipse, Accessed 13th May 2012, <http://www.eclipse.net/~cmmiller/BH/blkform.html>