NEUTRON STAR

extremely small, extremely dense star, about double the sun's mass but only a few kilometers in radius, in the final stage of stellar evolution. Astronomers Baade and Zwicky predicted the existence of neutron stars in 1933. In the central core of a neutron star there are no stable atoms or nuclei; only elementary particles can survive the extreme conditions of pressure and temperature. Surrounding the core is a fluid composed primarily of neutrons squeezed in close contact. The fluid is encased in a rigid crystalline crust a few hundred meters thick. The outer gaseous atmosphere is probably only a few centimeters thick. The neutron star resembles a single giant nucleus because the density everywhere except in the outer shell is as high as the density in the nuclei of ordinary matter. There is observational evidence of the existence of several classes of neutron stars: pulsars are periodic sources of radio frequency, X ray, or gamma ray radiation that fluctuate in intensity and are considered to be rotating neutron stars. A neutron star may also be the smaller of the two components in an X-ray binary star.

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The Columbia Encyclopedia, Sixth Edition Copyright© 2004, Columbia University Press. Licensed from Lernout & Hauspie Speech Products N.V. All rights reserved.

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Questia Books and Articles on: Neutron Star
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books on: Neutron Star  - 1070 results

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1.
The 23rd Cycle: Learning to Live with a Stormy Star
Book by Sten F. Odenwald; Columbia University Press, 2001
Subjects: Solar Activity--Environmental Aspects
...the reactions in the core of a star, the individual components to...collision liberates high-speed neutrons that can penetrate jet planes...development may be restrained by neutron showers as integrated circuit...the power outage. The Toronto Star in Ontario, at least on page...
2.
The Strategic Defense Debate: Can "Star Wars" Make Us Safe?
Book by Craig Snyder; University of Pennsylvania Press, 1986
Subjects: Strategic Defense Initiative--Congresses
THE STRATEGIC DEFENSE DEBATE CAN "STAR WARS" MAKE US SAFE? Edited by CRAIG...THE STRATEGIC DEFENSE DEBATE CAN "STAR WARS" MAKE US SAFE? Library of Congress...Strategic Defense and American Security: Can 'Star Wars' Make Us Safe?" This meeting was...
3.
Science Goes to War: The Search for the Ultimate Weapon, from Greek Fire to Star Wars
Book by Ernest Volkman; Wiley, 2002
Subjects: Military Art And Science--Technological Innovations--History, Military Weapons--History
...age, to find their way at night using star positions as navigation guides. Why, then...revolve on an axis that pointed to a fixed star in the heavens, the only one that did not move in the night sky. And since that star Polaris, in the Ursa Minor constellation...
4.
The Phantom Defense: America's Pursuit of the Star Wars Illusion
Book by Craig Eisendrath, Melvin A. Goodman, Gerald E. Marsh; Praeger, 2001
Subjects: Ballistic Missile Defenses--United States
...PHANTOM DEFENSE Americas Pursuit of the Star Wars Illusion Craig Eisendrath, Melvin...phantom defense : Americas pursuit of the Star Wars illusion / Craig Eisendrath, Melvin...Vu All Over Again: A Short History of Star Wars 3...
5.
Foundations of Modern Cosmology
Book by John F. Hawley, Katherine A. Holcomb; Oxford University Press, 1998
Subjects: Astrophysics, Cosmology
...detail the supernova of 1054. This "guest star," as they called it, should have been sufficiently...with the planet Venus, which as the Morning Star rises in the east just before the Sun, and as the Evening Star was thought to plunge sacrificially into...
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journal articles on: Neutron Star  - 23 results

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1.
Creating a Star: The Science of Fusion: Fusion Power Would Not Contribute to Global Warming, Acid Rain, or Other Forms of Air Pollution, nor Would It Create Long-Lived Radioactive Waste
Journal article by Stephen L. Baird; The Technology Teacher, Vol. 64, 2005
Subjects: Nuclear fusion--Research
Creating a Star: The Science of Fusion: Fusion...hydrogen) to make helium and a neutron. See Figure 1. FIGURE 1...of a different number of neutrons in the atomic nucleus. Deuterium...one proton, but one and two neutrons, respectively (Internet Plasma...
2.
Some Things We Know about Aliens
Journal article by Jr. Istvan Csicsery-Ronay; Yearbook of English Studies, Vol. 37, 2007
Subjects: Aliens--Myths and legends, Lem, Stanislaw--Criticism and interpretation, Lem, Stanislaw--Works, Science fiction writers--Criticism and interpretation, Science fiction writers--Works, Science fiction--Evaluation, Solaris (Book)--Criticism and interpretation
...1987), pp. 20-21. (10) The cheela of Robert Forwards Dragons Egg (1980) have evolved as creatures plausibly might on a neutron star. (11) The Alien Gods of Ancient Egypt in the TV series Stargate and the French-Bosnian writer Enki Bilals comic-book...
3.
Science and Culture
Journal article by Alan Gross; American Literary History, Vol. 7, 1995
Subjects: American Literature--History And Criticism
...exceptionally stable object. It is a solitary neutron star, essentially a giant atomic nucleus...definition, his personification of a star that "sits" and "sends," or his extended...Newcomb was a featured player, not a star. Charles Sanders Peirces assessment...
4.
Analysis of Science Textbook Recommendations Provided for Students with Disabilities
Journal article by Rene S. Parmar, John F. Cawley; Exceptional Children, Vol. 59, 1993
Subjects: Mainstreaming in education--Evaluation, Science--Curricula, Textbooks--Evaluation
...depicts the term. Emphasize to students that the drawing should contain the key characteristics of the term, such as "neutron star": small and dense; "nebula": a large cloud of dust and gas. Since the primary difficulty of students with HI is not...
5.
Wording-Our-Way toward Altered States
Journal article by Lyall Crawford; ETC.: A Review of General Semantics, Vol. 53, 1996
Subjects: Altered states of consciousness--Analysis, Linguistics--Analysis, Taoism--Analysis, Virtual reality--Analysis
...someone traveling at almost the speed of light in another galaxy? Does he want the truth of someone in orbit around a neutron star? Maybe if these people could see us through a telescope we might look like we were two feet two inches tall and it might...
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magazine articles on: Neutron Star  - 71 results

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1.
Explosive Aftermath: Sluggish Neutron Star Puzzles Astronomers
Magazine article by R. Cowen; Science News, Vol. 170, July 15, 2006
Subjects: Astrophysicists--Research, De Luca, Andrea--Research, Garmire, Gordon--Research, Neutron stars--Observations, Pennsylvania State University--Officials and employees, Supernovae--Observations, Supernovas--Observations
Explosive Aftermath: Sluggish Neutron Star Puzzles Astronomers. by R...explodes, its core collapses to form a neutron star or a black hole. The star then...gas. Close X-ray scrutiny of the neutron star inside RCW 103 belies that simple...
2.
Heavy Find: Weighty Neutron Stars May Rule out Exotic Core
Magazine article by Ron Cowen; Science News, Vol. 173, January 12, 2008
Subjects: General relativity (Physics)--Evaluation, Neutron stars--Composition, Neutron stars--Natural history, Neutron stars--Properties
...have debated whether a neutron star core is composed predominantly...radio wave--emitting neutron stars that rotate hundreds...normal-density companion star. The team restricted its...models predict that a neutron star should be no heavier than...
3.
The Real Star Wars Threat
Magazine article by Johan Galtung; The Nation, Vol. 244, February 28, 1987
Subjects: Lasers--Military aspects, Military lasers, Nuclear weapons--Public opinion, Space weapons--Analysis, Strategic Defense Initiative--Analysis
...affordable or desirable. However, there are reasons to believe that Star Wars is just what is being planned, a system for launching wars...to eliminate. Refinements in nuclear technology, such as the neutron bomb, are meant to correct that problem, but still a lot of...
4.
The 'Star Wars' Debate
Magazine article by Brian Crozier; National Review, Vol. 37, February 8, 1985
Subjects: Reagan, Ronald--Military policy, Strategic Defense Initiative--Analysis, Weapons systems--Analysis
...So it was with the so-called neutron bomb (enhanced radiation/diminished...bomb at all. So it is with "Star Wars," the favorable euphemism...explicit as a description. "Star Wars," on the other hand, sounds...War of the Worlds in 1898; "Star Wars" sounds like Wellss vision...
5.
Star Power: Love Is Toni Morrison's Best Novel in More Than a Decade. Now She's Aiming Even Higher
Magazine article by Adam Langer; Book, November 2003
Subjects: African American women authors--Attitudes, African American women authors--Works, Love (Book)--Criticism, interpretation, etc., Morrison, Toni--Attitudes, Morrison, Toni--Works
Star power: Love is Toni Morrisons best novel in more than a...disappointment at the box office. A writer for Variety called it a "neutron bomb," suggesting that, though it did not destroy the studio...going now," she says with a laugh. "Im going to go on a star trek. Thats just what Im going to do." The Novels of...
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newspaper articles on: Neutron Star  - 41 results

       More newspaper Results: 1-10 11-20 21-30 31-40 41-41 >>  
 
1.
50 for Fun; Phil Brown's Trivia Quiz
Newspaper article; Daily Post (Liverpool, England), August 23, 2007
...Brown 1 Lord Of The Rings actor Andy Serkis plays Hoodwink in which gritty British film released tomorrow? 2 An unusual neutron star recently discovered in the constellation Ursa Minor has been named Calvera - after the villain in which classic Western...
2.
The Door into Time; Travel to Future Seen as Possible
Newspaper article; The Washington Times, February 28, 2002
...involve using gravitational forces. A neutron star - a dense, compact star comprised...gravitational force. A clock on a typical neutron star would tick about 30 percent slower...Earth, Mr. Davies says, but using a neutron star for time travel would be impractical...
3.
Astronomers Use Light-Years in Order to Measure Distance
Newspaper article; Daily Herald (Arlington Heights, IL), December 21, 2005
...more than 10 billion light years from the Earth." After the supernovae explosion, whats left of the star could become a neutron star or a black hole. How can you tell the distance of a star? Some are very bright, does that mean its close by? Some are...
4.
`Starquake' Effects Reach Earth: Energy Matches 300 Years of Sun
Newspaper article by Ruth Larson; The Washington Times, September 30, 1998
...when an ordinary star explodes, leaving behind a dense core of matter, Mr. Duncan said. The result, normally called a neutron star, weighs more than our sun, but is compressed into a ball less than 12 miles in diameter. As a result, a tablespoon...
5.
The Stars
Newspaper article; Western Mail (Cardiff, Wales), August 19, 2006
...its fuel it explodes into a supernova. The stuff that is left collapses down to an extremely dense object known as a neutron star. Experts say they know that these exist because several have been found using radio telescopes. A supernova occurs in...
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encyclopedia articles on: Neutron Star  - 11 results

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1.
Neutron Star
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
NEUTRON STAR extremely small, extremely dense star...stars in 1933. In the central core of a neutron star there are no stable atoms or nuclei; only...probably only a few centimeters thick. The neutron star resembles a single giant nucleus because...
2.
Binary Star
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...a pulsar : PSR 1913+16, for example, has an orbital period of 7 hr 45 min; in this case the other star is also a neutron star . The orbit period decreases as the system loses energy in the form of gravitational waves; used as a clock to measure...
3.
Star
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...white dwarfs are no larger than the earth, and neutron stars are only a few kilometers in radius. The...irregular fashion. The supernova, or exploding star, is the most spectacular variable star; the eclipsing binary, where the two stars alternately...
4.
Pulsar
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
PULSAR in astronomy, a neutron star that emits brief, sharp pulses...discovered a rapidly spinning neutron star , a remnant of a supernova...stars, at least one of which is a neutron star, that orbit each other was discovered...
5.
Stellar Evolution
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...forms the core of a new astrophysical body, called a neutron star , of which pulsars are examples. If the stellar mass is too great to be stable even as a neutron star, complete gravitational collapse will ensue and a...
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