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Neutron Stars

August 20, 2010 Chandra :: Field Guide To X-ray Sources :: Neutron Stars/X-ray ... Posted by Hellen Popovich 26 Sep 2008 [...] An accessible summary of neutron stars and X-ray binaries, presented by the Chandra X-ray Observatory. Includes a questions and answers [...] Rating: No stars. Rate up / Rate down Report to moderator

August 20, 2010 Neutron Stars Posted by Hellen Popovich Neutron stars are a hyper-dense form of dead star composed almost entirely of neutrons. A sub-class of neutron stars are called pulsars - so-named because, [...] Rating: No stars. Rate up / Rate down Report to moderator

August 20, 2010 HPCwire: Einstein@Home Project Discovers Unusual Pulsar Posted by Hellen Popovich Jim Cordes, Cornell professor of astronomy, said the object is particularly interesting because it is likely a recycled pulsar: a neutron star that once had a companion star from which it acquired mass; but whose companion exploded, [...] Rating: 4 out of 5 stars Rate up / Rate down Report to moderator

August 20, 2010 Nasa Satellite Information: Eclipsing Pulsar Promises Clues To ... Send by Megaan Austin The pulsar is a rapidly spinning neutron star the crushed core of a massive star that long ago exploded as a supernova. Neutron stars pack more than the sun's mass into a ball nearly 60000 times smaller. With estimated sizes between 10 [...] Rating: No stars. Rate up / Rate down Report to moderator

August 20, 2010 Supernova Explosions Offer Potential Spin On Life's Origins - Get It? Posted by Hellen Popovich Artist's concept of a neutron star, an extremely compact but massive remnant of a high mass star. Formed during the gravitational core-collapse of supernovae, neutron stars can have strong magnetic fields and rapid rotation. [...] Rating: 2 out of 5 stars Rate up / Rate down Report to moderator

August 20, 2010 More Photos: Magnetic Mega-star Challenges Black Hole Theory (AFP) Posted by Hellen Popovich Magnetic Mega-star Challenges Black Hole Theory (AFP) AFP - A neutron star with a mighty magnetic field has thrown down the gauntlet to theories about stellar evolution and the birth of black holes, astronomers reported on Wednesday. [...] Rating: 1 out of 5 stars Rate up / Rate down Report to moderator

August 20, 2010 Disappearing Accretion Disk Is Missing Link In Pulsar Birth ... Send by Anne Minard Pulsars are superdense neutron stars, the remnants left after massive stars have exploded as supernovae. Their powerful magnetic fields generate lighthouse-like beams of light and radio waves that sweep around as the star rotates, [...] Rating: 4 out of 5 stars Rate up / Rate down Report to moderator

August 20, 2010 Kat With A K: What Happens When Neutron Stars Collide, Anyway? Send by Kat Obviously, one of the lingering questions about The Twilight Saga: Eclipse is what the heck is going on in "Neutron Star Collision," the song Muse wrote for the movie? Is a neutron star collision good or bad? What happens? [...] Rating: 4 out of 5 stars Rate up / Rate down Report to moderator

August 20, 2010 Out Of Exile..: Hole In The Bucket . Send by Kyle, Esq. two neutron stars in black holes end civility. * * *. the sky has fallen two bodies less heavenly erupting massive. * * *. translucent heavy i envy your sense of me destroy thoughts of we. * * *. you only want change [...] Rating: 2 out of 5 stars Rate up / Rate down Report to moderator

August 20, 2010 Using Home Astronomy Software, Citizen Scientists Discover New ... Send by Laurie J. Schmidt "No matter what else we find out about it, this pulsar is bound to be extremely interesting for understanding the basic physics of neutron stars and how they form," said James M. Cordes, professor of astronomy at Cornell University. [...] Rating: No stars. Rate up / Rate down Report to moderator

August 20, 2010 Spin-down Of Neutron Stars By Neutrino Emission Send by Maxim Dvornikov and Claudio Di We study the spin-down of a neutron star during its early stages due to the neutrino emission. The mechanism we consider is the subsequent collisions of the produced neutrinos with the outer shells of the star. [...] Rating: 3 out of 5 stars Rate up / Rate down Report to moderator

August 20, 2010 After The Storm: Measuring The Structure And Temperature Of A ... Send by Ian O'Neill So how do you take the temperature of one of the most exotic objects in the Universe? A neutron star (~1.35 to 2.1 solar masses, measuring only 24 km across) is. [...] Rating: 2 out of 5 stars Rate up / Rate down Report to moderator

August 20, 2010 Nuclear Physicists Study 'magic' Nature Of Tin (8/12/2010) Posted by Hellen Popovich "The properties we're studying in our experiment have parallels to the formation of elements heavier than iron in stars," Cizewski said. "This form of tin may be formed in supernova explosions or collisions of neutron stars, [...] Rating: 2 out of 5 stars Rate up / Rate down Report to moderator

August 20, 2010 SPACE.com -- Cosmic First: Pulsing Neutron Star Eclipsed By Stellar ... Posted by Hellen Popovich Astronomers recently saw a star eclipsing a spinning neutron star, collapsed supernova remnants, called a pulsar. The event is helping scientists understand how neutron-star [...] Rating: No stars. Rate up / Rate down Report to moderator

August 20, 2010 Magnetar' Discovery Challenges Stellar Evolution, Black Hole ... Posted by Hellen Popovich A neutron star with a mighty magnetic field has challenged the theories about stellar evolution and the birth of black holes, according to astronomers. [...] Rating: 1 out of 5 stars Rate up / Rate down Report to moderator

August 20, 2010 Just How Low Can A Black Hole Go? | Bad Astronomy | Discover Magazine Send by Phil Plait But if the star is less massive, the core doesn't have the oomph it needs to form a black hole, and instead forms a neutron star. They're superdense, but not quite black holes. We think the dividing line between stars massive enough to [...] Rating: 2 out of 5 stars Rate up / Rate down Report to moderator

August 20, 2010 Citizen Scientists Discover New Pulsar With Einstein@Home Send by dynamicpatterns Pulsars are rather exciting massive astronomical pebbles (dense neutron stars) that have extremely large magnetic fields and actually spin at crazy fast rates. These stars are typically 1 1/2 to 2 times the mass of our sun, [...] Rating: 5 out of 5 stars Rate up / Rate down Report to moderator

August 20, 2010 How Much Mass Makes A Black Hole? Posted by Hellen Popovich Using ESO's Very Large Telescope, European astronomers have for the first time demonstrated that a magnetar -- an unusual type of neutron star -- was formed from a star with at least 40 times as much mass as the Sun. The result presents great challenges to current theories of how stars evolve, as a [...] Rating: No stars. Rate up / Rate down Report to moderator

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