Cosmic Life and Death of a Star Essay examples -- physics science spac

ConceptionNebula as Star NurseriesStars ar born in the interstellar clouds of gas and dust called nebulae that are primarily found in the spiral fortify of galaxies. These clouds are composed mainly of hydrogen gas but also contain carbon paper, oxygen and mingled other elements, but we go forth see that the carbon and oxygen play a crucial role in flair shaping so they poke out special mention. A nebula by itself is not comely to form a ace however, and it requires the assistance of some outside force. A close passing star or a shock wave from a supernova or some other eventidet can have just the needed effect. It is the same root as having a number of marbles on a trampoline and then rolling a larger world through the middle of them or more or less the edges. The marbles will conglomerate around the channel of the ball, and as more marbles clump together, still more will be attracted. This is essentially what happens during the formation of a star ( prima(predicate ) Birth, 2004).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 very 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. Although this may sound like a simple enough process there are actually several variables that must be just effective for birth to happen. For one, the mass of the collapsing particles is crucial and ther... ...e times the mass of the sun. In this case gravity is overwhelmingly rigid and is able to crush the neutron star towards zero mass. The allow is a black hole with a gravitational field str ong enough to not even let light escape (Brusca, 2004).BibliographyBrusca, Stone. Cosmos, Physics 304. Arcata, CA Dr. Stone Brusca, 2004. Miller, Coleman M. Introduction to neutron stars. University of Maryland. 22 Nov. 2004 Star death post- main sequence evolution of stars. 22 Nov. 2004 Stellar Birth. 11 Jan. 2004. 22 Nov. 2004 Tyler, Pat. Supernova. NASAs Heasarc Education and open Information. 26 Jan. 2003. 22 Nov. 2004 Cosmic Life and Death of a Star Essay examples -- physics light spacConceptionNebula as Star NurseriesStars are born in the interstellar clouds of gas and dust called nebulae that are primarily found in the spiral arms of galaxies. These clouds are composed mainly of hydrogen gas but also contain carbon, oxygen and various other elements, but we will see that the carbon and oxygen play a crucial role in star formation so they get special mention. A nebula by itself is not enough to form a star however, and it requires the assistance of some ou tside force. A close passing star or a shock wave from a supernova or some other event can have just the needed effect. It is the same idea as having a number of marbles on a trampoline and then rolling a larger ball through the middle of them or around the edges. The marbles will conglomerate around the path of the ball, and as more marbles clump together, still more will be attracted. This is essentially what happens during the formation of a star (Stellar Birth, 2004).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. Although this may sound like a simple enough process there are actually several variables that must be just right for birth to happen. For one, the mass of the collapsing particles is crucial and ther... ...e times the mass of the sun. In this case gravity is overwhelmingly strong and is able to crush the neutron star towards zero mass. The result is a black hole with a gravitational field strong enough to not even let light escape (Brusca, 2004).BibliographyBrusca, Stone. Cosmos, Physics 304. Arcata, CA Dr. Stone Brusca, 2004. Miller, Coleman M. Introduction to neutron stars. University of Maryland. 22 Nov. 2004 Star death post- main sequence evolution of stars. 22 Nov. 2004 Stellar Birth. 11 Jan. 2004. 22 Nov. 2004 Tyler, Pat. Supernova. NASAs Heasarc Education and Public Information. 26 Jan. 2003. 22 Nov. 2004