neutron%20star.jpg
Neutron Stars and Pulsars

By: Samantha Lindquist
Edited by: Kimberly McCowan
Edited by: David Wood Fall 2010Edited by: Jake McKinney 2011Edited by: John Webb 2012Edited by: R. Andrew Gawer Fall 2012
Neutron stars are the imploded core of a once-massive star, produced by a supernova explosion with a typical mass of 1.4 times the mass of the Sun and compressed into a radius of about 5 miles. According to astronomers, "A sugar cube of neutron-star matter on Earth would weigh as much as all of humanity!". Pulsars are a type of neutron star. A pulsar is a rotating neutron star that generates regular pulses of radiation. This section provides information about how Neutron Stars and Pulsars are made, what they are made out of, physical features, and how they were discovered.



  • LAST UPDATED - 17SEP2003
  • DATE REVIEWED - 09DEC2012
  • REVIEWED BY: Andrew Gawer
  • ACCURACY: - Information appears to be accurate as far as the genera public is concerned.
  • READABILITY and CLARITY: Page is easy to read. Images have sources listed.
  • EASE OF NAVIGATION: Simple navigation, sidebar links.


  • LAST UPDATED - Unknown
  • DATE REVIEWED - 09DEC2012
  • REVIEWED BY: Andrew Gawer
  • ACCURACY: - Information appears to be completely accurate.
  • READABILITY and CLARITY: Intended audience is the student. Clear paragraph format.
  • EASE OF NAVIGATION: Navigation is simple, sidebar navigation.


  • LAST UPDATED - 2012
  • DATE REVIEWED - 09DEC2012
  • REVIEWED BY: Andrew Gawer
  • ACCURACY: - Information appears to be completely accurate.
  • READABILITY and CLARITY: Written for a general audience. Very clear and well laid-out.
  • EASE OF NAVIGATION: Good navigation led by sidebar control.


  • LAST UPDATED - 15APR2011
  • DATE REVIEWED - 09DEC2012
  • REVIEWED BY: Andrew Gawer
  • ACCURACY: - Information appears to be completely accurate.
  • READABILITY and CLARITY: Intended audience is the general public. Written in an open-letter format.
  • EASE OF NAVIGATION: N/A


  • LAST UPDATED - Not Known
  • DATE REVIEWED - 09DEC2012
  • REVIEWED BY: Andrew Gawer
  • ACCURACY: - Information appears to be factual and accurate, collected and synthesized by a career Astronomer.
  • READABILITY and CLARITY: Intended audience is the educated public. Article is easy to read and doesn't contain unnecessary jargon.
  • EASE OF NAVIGATION: Great Navigation, the article is part of an online encyclopedia of sorts.


Neutron Stars and Pulsars-Introduction
http://imagine.gsfc.nasa.gov/docs/science/know_l1/pulsars.html
pulsar.gif
http://imagine.gsfc.nasa.gov/docs/science/know_l1/pulsars.html
Author: NASA GODDARD SPACE FLIGHT CENTER
Last Updated: December 2006
Date Reviewed: May 22 2012
Accuracy: Very accurate, maintained by NASA space flight center, covers neutron stars and pulsars clearly.
Readability and Clarity: The article is easy enough to understand. It is written clearly and without any significant typos.
Ease of Navigation: On the side of the page there is a list of links to other pages on similar topics, even a link to a ore advanced page on neutron stars and pulsars.

Neutron Stars, Pulsars, and Neutron Degeneracy
http://hyperphysics.phy-astr.gsu.edu/Hbase/astro/pulsar.html
pulsar_(1).gif

Author: Department of Physics and Astronomy (Georgia State University)
Date Reviewed: May 22 2012
Accuracy: The article is accurate and up do date providing many different subcategories of the specifics of neutron stars and pulsars.
Readability and Clarity: The article seems more advanced in its material
Ease of Navigation: The page is limited on other sources or further reading.

Birth/Death and Discovery of Neutron Stars and Pulsars
http://www.lbl.gov/Science-Articles/Archive/sb/Nov-2004/03-Neutron-Stars.pdf
Author: N.K. Gledenning
Date Reviewed: May 22 2012
Accuracy: The novella, for it has eleven pages of info is quite accurate, with a nice array of pictures.
Readability and Clarity: The article is reasonably clear and finds easy ways to make its point.
Ease of Navigation: It's just the one article no further reading is offered.

Neutron Stars
http://www.astro.umd.edu/~miller/nstar.html
ns.gif
Author: M. Coleman Miller
Date Reviewed: May 22 2012


Accuracy: The on this page is rather lengthy but fairly accurate.
Readability and Clarity: The page is easily read and understandable.
Ease of Navigation: It is only one page, no further reading or other sources are listed.

Pulsars and Neutron Stars Video
http://www.youtube.com/watch?v=jBX6WOK72Kg
Author:NASA's Marshall Space Flight Center
Date Reviewed: May 22 2012
Accuracy: The video is accurate and up to date with most information.
Clarity: Hard to be more clear the the video.
Ease of Navigation: Hit or miss you will be at the mercy of youtubes related videos.

**Supernova, Neutron stars, and Pulsars**
**http://cass.ucsd.edu/public/tutorial/SN.html**
pulses.gif
Author: Gene Smith
Date Reviewed: May 12, 2012
Accuracy: The page is lengthy and gives plenty of information on supernovae, neutron stars, and pulsars.
Readability and Clarity: The page is well written, with plenty of information.
Ease of Navigation: There is only one page no further reading or other sources listed

Neutron Stars and Pulsars
**http://www.eclipse.net/~cmmiller/BH/blkns.html**
pulse1.gif
Author: Chris Miller
Date Reviewed: May 12 201
Accuracy: The information is simple yet correct.
Readability and Clarity: The page is a very easy read and very clear.
Ease of Navigation: The site is easily mapped, easily to find what you need.

**Neutron Stars**
**http://space.about.com/od/stars/a/NeutronStars.htm**
Author: John Millis
Date Reviewed: May 22 2012
Accuracy: The information is accurate and more focused on the creation than the life of neutron stars.
Readability and Clarity: The page reads like a news article rather short not too technical.
Ease of Navigation: The site seems to be reasonably well-stocked with pages relating to the subject matter.

**Recent Results of XMM and Chandra Observations of Neutron Stars**
**http://www.xray.mpe.mpg.de/~web/Meetings/Bonn_Meeting_03/WBecker_Bonn_April_03.pdf**
Author: Werner Becker
Date Reviewed: May 22 2012
Accuracy: The data seems to be accurate.
Readability and Clarity: Without some sort of training this page isn't readable to most people.
Ease of Navigation: There is no links, or further reading supplied.

**Lives and Deaths of Stars**
**http://www.astronomynotes.com/evolutn/s12.htm**
Author: Nick Strobel
Date Reviewed: May 22 2012
Accuracy: The data seems accurate, a nice amount of text, almost like a textbook
Readability and Clarity: The page is well written, and appears proffessional.
Ease of Navigation: The page is written like a virtual book, a chapter index, review questions.

**Neutron Stars and Pulsars**
**http://www.ucolick.org/~bolte/AY4_00/week9/ns-pulsars.html**
Author: Mike Bolte, Rick Waters, and Brenda Wilden
Date Reviewed: May 22 2012
Accuracy: The page is accurate and well written.
Readability and Clarity: The page is clear and well written.
Ease of Navigation: The page seems somewhat cumbersome, an index is provided but hard to navigate accurately.

**Compact Stars and Pulsars
**http://www.nmm.ac.uk/explore/astronomy-and-time/astronomy-facts/stars/pulsars**
Author: ROG Learning Team
Date Read: November 23rd, 2010
Audience: General Public and college students
Summary: This is a great site for the public as the way it leads into talking about this subject is more easily understandable. This page starts by talking about just what exactly a compact star is and then goes into what pulsars are. It talks about how many pulsars are in our galaxy and also delves into the crab nebula. After that it goes into binary pulsars, general relativity and also an example of a pulsar. This is a very long page with alot of information.



Neutron Stars and Pulsars
http://burro.cwru.edu/stu/advanced/stars_neutron.html
Date Read: December 5, 2011
Audience: College Student
Summary: This website is very well written and organized to provide general information about neutron stars and pulsars. This website covers many other subjects and allows any budding astronomer to get an overview on the subject and the vast knowledge provided.

Pulsars
http://www-outreach.phy.cam.ac.uk/camphy/pulsars/pulsars1_1.htm
Author: Bell and Hewish
Date Reviewed: May 22 2012
Accuracy: The information on the subject is clear accurate and well written.
Readability and Clarity: The information is easily understood.
Ease of Navigation: The page has a limited number of other pages to read.

Neutron Stars
http://www.physicsplanet.com/articles/neutron-stars
Date Reviewed: May 22 2012
Accuracy: The page is accurate, not extremely technical.
Readability and Clarity: The page is easily read and is easily understood.
Ease of Navigation: The page is easily navigated, and has plenty of information on the subject.