Stars and Black Holes


Space is a never-ending source of mystery. Scattered throughout space are the infamous black holes. Numerous stars also wander throughout the vastness. There is a direct correlation between the two. Stars contribute to the formation of black holes, as well as get destroyed by them. Take a moment to understand the phenomenon of stars and black holes.

Definition of a Black Hole

A black hole is an area known for its immense gravity. Matter is literally sucked in with no hope of escape. These are referred to as a black hole due to the fact that light cannot escape the intensity of the gravitational pull. Black holes cannot be detected by sight due to the absence of light. Radiation from items entering the black hole is released. This release happens right before objects cross over the threshold of the black hole. Nothing escapes after passing the mouth, or event horizon. Scientists can detect the radiation surrounding the black hole.

Formation of Stellar Black Holes

Black holes usually form from old stars. Small stars may result in a white dwarf, however. When stars begin to burn out they fold in on themselves. This collapse determines what becomes of the final remains. Continued compression leads to an unusually dense formation of matter. This is the black hole. The density is what causes the overwhelming gravitational pull. They expand as surrounding items are pulled inside. Dust is the main item consumed by black holes. Stars and light, however, can also fall prey to these entities.

Supermassive Black Holes

Supermassive black holes are much more complicated than their smaller counterparts. It is theorized that they are formed when stellar black holes collide, forcing them to combine into one larger black hole. The size has to do more with the mass than the radius. There are also thoughts that collections of stars or gas clouds contribute to the formation of supermassive black holes.

Parts of a Black Hole

As mentioned earlier, the event horizon is the near the opening of a black hole. This area is the last stop for objects that are being sucked in. Matter, and light, are trapped after they cross this barrier. The extreme gravity inside keeps objects from returning to space. The center of a black hole is referred to as its singularity. This area is one dimensional. It is very small in relation to the amount of mass it contains. The laws of physics are thought to be negated in this area. Diagrams show a cone shape when representing a black hole. The mouth is large and wide, while the singularity is narrow.

Stars in the Path

Stars, inevitably, pass by black holes on a regular basis. Once they are too close to the black hole, they fall prey to the gravitational pull. In an event called tidal eruption. The star is, basically, torn apart. Some of the star may be pushed out into the universe, while the remainder is swallowed by the black hole. These events add mass to the black hole, causing it to increase in size.

Stars and black holes have a direct correlation. It is ironic that a star must deteriorate to form a stellar black hole, only to then consume other stars. Black holes are still somewhat of a mystery. Scientists are able to find them more consistently now, due to an understanding of the radiation surrounding them. They can, however, be easily hidden by dust in the galaxy. Black holes disrupt what we know about physics and keep researchers guessing.


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