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Life cycle of stars research papers
Stars formation and existence
Life cycle of stars research papers
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‘There are more stars than all of the grains of sand on earth.’(Star Facts, 2005:1)
Looking up at the sky on a vibrant night, the vision is naturally lit one with millions of vivacious, glistening stars. The tenacity of this essay is to explore the lifecycle of a star, thence, signify its manifestation in the universe. A fundamental part of our universe is stars. Hence, these miniature luminous forms are essentially very immense in magnitude and it is merely due to their substantial distance from Earth that they appear so trivial. Scientifically, a star is a ball of hydrogen and helium with sufficient mass that it can endure nuclear mixture at its core. A huge, shining ball of plasma, whose lustre is an outcome of thermonuclear fusion are all properties of a star. In addition, they are held together by gravity. By far the star nearest to earth is probably known by all humans as the Sun. 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. A star initiates truly by its own gravitational redu...
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Red Giant. Retrieved November, 1, 2011, from, http://library.thinkquest.org/05aug/00108/redgiantpage_frameset.htm
BOOKS:
Conway, A, Coleman, R. 2003, A beginner’s guide to the Universe, Press Syndicate, The University of Cambridge, United Kingdom.
Penston, M, Morison I. 2004, Astronomy, New Holland Publishers, London, England.
Brown dwarfs are objects in space that sit between the lines of being a star and a planet. This object is dim and hard to distinguish from low mass stars at the early stages of the dwarf’s life. They are often called failed stars because they start their life the same way as regular stars. However, in some stage, they just didn’t have enough mass gathered to generate the fusion-powered energy of a star. Scientists are certain that brown dwarfs are the missing link between stars and planets but the formations of dwarfs are still a mystery.
Impey, Chris. How It Began: A Time-traveler's Guide to the Universe. New York: W.W. Norton, 2012. 123+. Print.
Kirkpatrick, Larry D. and Gerald F. Wheeler. Physics: A World View. Fourth Edition. Harcourt College Publishers: Orlando, Florida, 2001.
Bernstein, Jeremy, Paul M. Fishbane, and Stephen Gasiorwocz. Modern Physics. New Jersey: Prentice Hall. 2000
Hawking, Stephen. “Our Picture of the Universe.” Fields of Reading. 6th ed. Ed. Nancy R. Comely et al. New York: St. Martin’s, 2001. (565-574)
Stars are born and reborn from an explosion of a previous star. The particles and helium are brought together the same way the last star was born. Throughout the life of a star, it manages to avoid collapsing. The gravitational pull from the core of the star has to equal the gravitational pull of the gasses, which form a type of orbit. When this equality is broken, the star can go into several different stages. Some stars that are at least thirty times larger than our sun can form black holes and other kinds of stars.
An underlying theme present throughout the series is the possibility that our existence is not the only one. According to current theories in physics, it is entirely possible that our universe is just one of many universes f...
If the nebula is dense enough, certain regions of it will begin to gravitationally collapse after being disturbed. As it collapses the particles begin to move more rapidly, which on a molecular level is actually heat, and photons are emitted that drive off the remaining dust and gas. Once the cloud has collapsed enough to cause the core temperature to reach ten-million degrees Celsius, nuclear fusion starts in its core and this ball of gas and dust is now a star. It begins its life as a main sequence star and little does it know its entire life has already been predetermined.
Shklovskii, Iosif S. Stars: Their Birth, Life, and Death. Moscow: Central Press for Literature in Physics and Mathematics, 1975.
Our sun is the central pivot point to which or entire planet and solar system is built around. With out it all life on our planet would cease to exist. Within this paper we will explore how our Sun and solar system formed and came to resemble what we see today.
Kirkpatrick, Larry, and Gerald F. Wheeler. Physics: A World View. 4th ed. Orlando: Harcourt College Publishers, 2001.
Fowler, Michael. “Modern Physics.” Lecture. Mass and Energy. 1 Mar. 2008. Web. 13 Oct. 2013.
Sidney, Philip. "Astrophel and Stella." Online. Renascence Editions. U of Oregon P. 6 Apr. 1999. Available HTTP: darkwing.uoregon.edu.