Quasars and Active Galaxies
The astronomical world is full of phenomena beyond the average person’s imagination. The technical tools and analytical methods astronomers use are very complex. The enormous numbers and distances are mind boggling. Theories behind astronomical phenomena are based on yet another theory. In order to understand the concept of quasars and active galaxies, one must first have a feel for the astronomical numbers involved. Secondly, a basic knowledge of the tools of the trade, and finally, a working knowledge of astronomical jargon. Once there is a working knowledge of the aforementioned factors, then there is the chance that one could be able to assimilate the complex theoretical properties that are used to discuss quasars and active galaxies.
In order to understand the large numbers used to express the vast distances discussed in astronomy, one needs to relate these numbers to everyday life. During everyday conversation, people may say things like “the national debt is trillions of dollars,” “the lottery is up to 31 million dollars,” or “John Doe is a billionaire.” An astronomer might say that “one astronomical unit equals 93,000,000 miles or that a light-year is 5,870,000,000,000,000 miles.” The human comprehension level of all of these terms is probably nowhere near the actual truth behind how large these numbers really are. To obtain a feel for these gigantic distances used by astronomers, Astronomy Magazine writer, John P. Wiley says it may be helpful to keep in mind that it takes thirty-one years to count to one billion at the rate of one number per second. He also puts a voyage to a galaxy that is a billion light-years away into perspective by calculating how long it would take to get there in a vessel speeding along at 18,000 miles an hour. The trip would take 37 trillion years. When discussing galaxies and quasars, billions are the smallest numbers used (56,57).
The theory of how quasars are created is based on the idea that the universe is expanding. Among astronomers, the popular consensus is that the Earth is in an expanding universe in which the laws of physics will hold true beyond this planet as well. G. Mark Voit, an astronomer at the Space Telescope Science Institute, believes that the beginning of the universe was a time when many galaxies would be visible to the naked eye b...
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... telescopes like Hubble, and the Very Long Baseline Interferometry Space Observatory (VSOP), have also proven useful analytical tools for astronomers. Black holes and quasars are interdependent theories. The explanation of black holes leads to an explanation for quasars. These phenomena lead astronomers to believe that there may be places in the universe where the laws of physics may break down, opening doors to new theories for future astronomers (Hawkings).
Works Cited
Bartusiak, Marcia. “Outsmarting the Early Universe.” Astronomy 26.10 (1998): 55-59.
Chaisson, Eric., and Steve McMillan. Astronomy Today. 3rd ed. Toronto: Prentice-Hall, 1999.
Disney, Michael. “A New Look at Quasars.” Scientific American 278.6 (1998): 52-57.
Hawking, Stephen. “Universe.” PBS Home Video. BBC-TV, 1997.
Olsen, Steve. “Black Hole Hunters.” Astronomy 27.5 (1999): 48-55.
Peterson, Ivars. “The Birth of Twin Quasars.” Science News 137.4 (1990): 60.
Voit, G. Mark. “The Rise and Fall of Quasars: Dormant Monsters May Lie Sleeping in Nearby Galaxies.” Sky & Telescope 97.5 (1999): 40-46.
Wiley, John P. Jr. “A Googolplex of Galaxies.” Astronomy 27.5 (1999): 56-57.
The origins of the super-massive black holes which concludes how they were formed and what caused them to form is an unsolved problem which is yet a mystery of astrophysics. ( Millis 2014)
Black holes were originally thought to have only mere mathematical concepts. There was seemingly no possible way to compress any object into a space small enough to equal to its schwarzschild radius. Later however, astronomer Subrahmanyan Chandrasekhar calculated that stars much larger than our own sun should theoretically be able to collapse into a black hole (UTFC). A star is like a blown up balloon with the force of gravity trying to compress the balloon inwards and the air trying to push the balloon outwards. Likewise, stars are held in balance by gravity trying to collapse the star inwards going against the outwards pressure of the internal reactions of the star called nuclear fusion.
Distances so vast that the light from those areas in space is billion years old. Illingworth was able to see these ancient giants with the Hubble Space Telescope. A telescope that is high above the atmosphere, because it can distort the image. 100 sextillion miles or 17,010,779,502.32 light years is the most distant galaxy Illingworth
Waller, William H. The Milky Way: An Insider's Guide. Princeton, N.J: Princeton UP, 2013. 42+. Print.
Promoting your company through blogs, podcasts, video, newsletters, SEO, eBooks and Social Media is called Inbound Marketing. The ultimate purpose of inbound marketing is to bring customers closer to the brand. Inbound marketing earns a lot of attention from the customers and makes it easy for them to find your company. It helps you to get new customers through the interesting content you would post on your social media, blogs, newsletters or more.
Shklovskii, Iosif S. Stars: Their Birth, Life, and Death. Moscow: Central Press for Literature in Physics and Mathematics, 1975.
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Steyn, P., Salehi-Sangari, E., Pitt, L. and Berthon, P., (2010). The SocialMedia Release as a Public Relations Tool: Intentions to Use Among B2B Bloggers. Public Relations Review, 36(1), pp.87-89.
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Astronomers believe that most galaxies consist of a supermassive black hole at the center, which attracts all constituents of galaxies such as, dust, gases (mainly Hydrogen and Helium), atoms, stars, interstellar clouds and planets to the center by force of gravity, but are not sure whether all galaxies contain a black hole in the center. Galaxies keep moving in relative motion to one another and intermittently can come so close that the force of gravitational attraction between the galaxies may become strong enough to cause a change in the shape of the galaxies, while in exceptional cases, the galaxies may collide. If two galaxies collide, they may pass right through without any effect or may merge, forming strands of stars, extending beyond 100,000 light years in space (World Book Online Reference Centre, 2005). Hence, neighboring and often other colliding galaxies induce the sha...
Well, you want to be a resource for your clients and potential clients. Providing your readers and followers with valuable content is a great way to establish a relationship with them and set your brand up as an expert resource to look to when they have questions. It allows you to communicate with your clients without always trying to sell something to them.
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