Black Holes

The universe consists of many fascinating objects . Unfortunately , some of which cannot be known with just the naked eye . This is because it cannot be seen from Earth , and other technological advancements are needed to fully determine its nature . This is also the reason why several people have acquired false notions of what those objects are One of those objects is the black hole . Science fiction films and and television shows have given the public a different view of black holes (Lochner 2006 , poles apart from what they really are . This research seeks

to discuss the definition and characteristics of black holes

Before the characteristics of a black hole can be discussed , it is first necessary to define what it is . An introduction is in . So what is black hole ? According to Lochner (2006 , it is the evolutionary end point of massive stars (p .2 ' There are stars which has sizes much bigger than that of the Sun . In fact , some of them are at least 10 to 15 times as massive as the Sun (Lochner , 2006 br

.2 ' When a star of this size sustains a supernova explosion , it leaves behind some stellar residue . Since in space there are no other forces to fight gravity , the residue will crumble unto itself . Lochner (2006 ) narrates , The star eventually collapses to the point of zero volume and infinite density , creating what is known as a 'singularity (p .2 ' Eventually , density will increase the light rays which is diffused by the star will then be encircling the star . Any emitted photons are trapped into an orbit by the intense gravitational field they will never leave it (Lochner , 2006 ,

.2 ' The moment the star reaches the point of no density , all the light is trapped . Hence , it is called the black hole . The phrase 'black hole ' was coined by John Archibald Wheeler (Bunn , 1995 . Prior to that , the objects were called frozen stars (Bunn , 1995

Even in the time of Isaac Newton , the existence of objects as such has been thought of . Now it is more accurately explained using Einstein 's General Theory of Relativity . This is a geometric theory of gravitation , which incorporates and extends the theory of special relativity to accelerated frames of reference and introducing the principle that gravitational and inertial forces are equivalent (Lochner , 2006 ,

.1 ' This theory then explains the possibility for such occurrences like bent light caused by massive objects and the very nature of black holes . Such theory enables the event wherein space and time become so warped that time practically stops in the vicinity of a black hole (Lochner , 2006 ,

.1 ' Black holes are identified to have an estimated mass of 4-15 Suns . Since black holes are formed after the death of a star , or supernova explosions , these explosions in turn have after-effects . These effects give way to X-ray binaries which is referred to as black hole candidates (Lochner , 2006 ,

.1

Moreover , there exists galaxy-mass black holes . These massive...