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- For the Hugo Award-winning story by Larry Niven, see Neutron Star (story).
A neutron star is one of the few possible endpoints of stellar evolution. A neutron star is formed from the collapsed remnant of a massive star after a Type II, Type Ib, or Type Ic supernova.
A typical neutron star has a mass between 1.35 to about 2.1 solar masses, with a corresponding radius between 20 and 10 km (they shrink as their mass increases) — 30,000 to 70,000 times smaller than the Sun. Thus, neutron stars have densities of 8×1013 to 2×1015 g/cm³, about the density of an atomic nucleus. Compact stars of less than 1.44 solar masses, the Chandrasekhar limit, are white dwarfs; above three to five solar masses (the Tolman-Oppenheimer-Volkoff limit), gravitational collapse occurs, inevitably producing a black hole.
More on [ Neutron star ]
Novae and Supernovae :: Stars
Astrophysics :: Physics
RT @FOSSwiki: A New Open-Source Code for Spherically-Symmetric Stellar Collapse to Neutron Stars and Black Holes. #opensource htt... htt ...
FOSSmaniac (Parin Sharma) Fri, 18 Dec 2009 08:04:59 -0000
RT @FOSSwiki: A New Open-Source Code for Spherically-Symmetric Stellar Collapse to Neutron Stars and Black Holes. #opensource htt... htt ...
A New Open-Source Code for Spherically-Symmetric Stellar Collapse to Neutron Stars and Black Holes. #opensource htt... http://bit.ly/54aVxG
FOSSwiki (FOSSwiki) Fri, 18 Dec 2009 08:03:25 -0000
A New Open-Source Code for Spherically-Symmetric Stellar Collapse to Neutron Stars and Black Holes. #opensource htt... http://bit.ly/54aVxG
A New Open-Source Code for Spherically-Symmetric Stellar Collapse to Neutron Stars and Black Holes. #opensource http://bit.ly/5UpV7W
opensource_ (Open Source) Fri, 18 Dec 2009 07:42:17 -0000
A New Open-Source Code for Spherically-Symmetric Stellar Collapse to Neutron Stars and Black Holes. #opensource http://bit.ly/5UpV7W
A New Open-Source Code for Spherically-Symmetric Stellar Collapse to Neutron Stars and Black Holes http://arxiv.org/abs/0912.2393
evanoc (evanoc) Wed, 16 Dec 2009 03:40:19 -0000
A New Open-Source Code for Spherically-Symmetric Stellar Collapse to Neutron Stars and Black Holes http://arxiv.org/abs/0912.2393
#scinews Quark-burning stars (denser than neutron stars) theoretically possible: http://bit.ly/4vmbzP
timtfj (Tim J) Tue, 15 Dec 2009 15:58:12 -0000
#scinews Quark-burning stars (denser than neutron stars) theoretically possible: http://bit.ly/4vmbzP
A New Open-Source Code for Spherically-Symmetric Stellar Collapse to Neutron Stars and Black Holes http://arxiv.org/abs/0912.2393
sarahkendrew (Sarah Kendrew) Tue, 15 Dec 2009 10:16:45 -0000
A New Open-Source Code for Spherically-Symmetric Stellar Collapse to Neutron Stars and Black Holes http://arxiv.org/abs/0912.2393
A Gravitationally Powered Oscillatory Pulsar Model - Proposed advanced theory of mainstream pulsars being oscillatory and powered by gravitational contraction, rather than rotary.
Meta Description: [ Pulsars are modeled as oscillators that
are powered by gravitational contraction. The equations predict that an
old pulsar reaches a limiting frequency near 0.4 Hz at the Schwarzschild
radius. ]
A Tutorial on Radio Pulsars - A tutorial from the Australia Telescope National Facility, Parkes, New South Wales
Meta Description: [ A Tutorial on Radio Pulsars ]
Atmospheres of Neutron Stars - An interactive archive of neutron star atmosphere models, for advanced students and researchers.
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Axisymmetric Collision of Two Neutron Stars - Features images simulating the collision of two neutron stars.
500
Binary Neutron Star Collision Simulations - Detailed simulations of binary neutron star collisions, including stills from the movies at different time steps.
Meta Description: [ Description of visualization techniques usedto represent density values in a binary neutronstar collision simulation ]
Black Holes and Neutron Stars - This site offers a non-technical discussion about black holes and neutron stars. Topics include what they are, how they form, how we detect them, FAQs and a links page.
Meta Description: [ Black Holes and Neutron Stars offers a non-technical discussion about black holes and neutron stars. Topics include what they are, how they form, and how we detect them. There is also a Q&A section featuring answers to questions submitted by users, and a page of links to other sites on the Web. ]
Catalogue of Galactic Supernova Remnants (SNRs) - Listing of over 200 supernova remnants.
Meta Description: [ This is Dave Green's Galactic supernova remnant catalogue, or catalog of SNRs, updated 2006 April, containing 265 supernova remnants ]
Introduction to Neutron Stars - An accessible introduction to neutron stars that includes details on their life cycles as well as detailed information on neutron star variants such as x-ray and gamma ray bursters.
Introduction to Pulsar Astronomy - A tutorial on radio pulsars and The Sounds of Pulsars
Jodrell Bank Observatory: Pulsar Research - As one of the research groups of the Jodrell Bank Observatory, we form part of the Department of Physics and Astronomy of the University of Manchester, in the United Kingdom. We have many collaborations with other research groups across the world and, in particular, with the ATNF with whom we are the main partners in the Parkes Multibeam Pulsar Survey
Little Green Men, White Dwarfs or Pulsars? - A personal account by Jocelyn Bell Burnell on the discovery of pulsars.
Neutron Star Theory Group at UNAM - Includes a small collection of neutron star images and other resources.
Neutron Stars - Overview of what is known about neutron stars, including a discussion of X-ray bursters.
500
Neutron Stars - Key Concepts - This site provides a concise definition and description of neutron stars. Suitable for university students.
404
Neutron Stars and Pulsars - Brief page containing basic characteristics of neutron stars and how they were discovered.
Neutron Stars and Supernovae - Brief look at the evidence connecting neutron stars with supernovae.
Neutron Stars and X-ray Binaries - An accessible summary of neutron stars and X-ray binaries, presented by the Chandra X-ray Observatory. Includes a comprehensive QA section and a selection of quality images.
Princeton Pulsar Group - Princeton University's site on pulsars, including a definition of pulsars, multimedia and telescopic images, and links to other web data.
Pulsar Physics - Provides technical descriptions of pulsars - focussing on neutron stars, gamma ray pulsars and polar cap or outer gap gamma-ray emission.
Meta Description: [ Pulsar physics ]
Radio Pulsar Newsletter - Radio pulsar abstracts published by the University of Sydney's Research Centre for Theoretical Astrophysics.
Remnant of Chinese Supernova - Scientists using NASA's Chandra X-ray Observatory have found new evidence that a pulsar in the constellation of Sagittarius was created when a massive star exploded, witnessed by Chinese astronomers in the year 386 AD.
Summaries of Neutron Star Types - Includes short summaries on neutron stars, including information on pulsars, neutron degeneracy, pulsar examples, binary pulsars and planets around pulsars. This information links to a useful navigable 'mind map' dealing with concepts in physics.
Virtual Trips to Black Holes and Neutron Stars Page - Ever wonder what it would look like to travel to a black hole or neutron star?
Windows to the Universe: Neutron Stars - A typical neutron star is the size of a small city, but it may have the mass of as many as three suns.
X-ray Astronomy: Neutron Stars - Brief description of neutron stars.
Meta Description: [ This site is intended for students age 14 and up, and for anyone interested in learning about our universe. ]
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