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- DictionaryNeu·tron star/ˈno͞oˌträn stär/
noun
- 1. a celestial object of very small radius (typically 18 miles/30 km) and very high density, composed predominantly of closely packed neutrons. Neutron stars are thought to form by the gravitational collapse of the remnant of a massive star after a supernova explosion, provided that the star is insufficiently massive to produce a black hole.
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Collapsed core of a massive supergiant star
- A neutron star is the collapsed core of a massive supergiant star. It results from the supernova explosion of a massive star —combined with gravitational collapse —that compresses the core past white dwarf star density to that of atomic nuclei.
en.wikipedia.org › wiki › Neutron_star
A neutron star is a small, dense and extremely hot star that results from the collapse of a massive supernova. Learn about its composition, rotation, evolution, detection and role in gravitational wave astronomy.
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The life of a star, no matter its size, is a balancing act between the inward "push" of gravity and the outward push provided by photons generated as they conduct nuclear fusion, the forging of heavy atomic nuclei from light nuclei, at their cores. When stars run out of hydrogen to fuse into helium, they reach the end of their main sequenceof nucle...
If this process of neutron star birth sounds familiar, that could be because it is also the path that a massive star takes to become a black hole. The question is, why do some stars birth neutron stars while others leave behind black holes? The key difference seems to be the collapsing stellar core possessing enough mass to exceed the protection th...
While the line between neutron stars and black holes is vague and poorly defined, the line between the stellar remnant that our sun will become, a white dwarf and a neutron star is much better understood. When the sun reaches the end of its hydrogen supply in around 5 billion years, and the outward pressure protecting against gravitational collapse...
To consider how dramatic and violent the near-complete gravitational collapse that births a neutron star is, one only has to look at the material that it creates and the dimensions of the object it comprises. The collapse of massive stellar cores results in an object that has from one to two times the mass of the sun, but only has a width of betwee...
When neutron stars are born, the conservation of angular moment results in them spinning at incredibly rapid speeds. To consider why this is the case think of an ice skater in a spin. As they draw their arms in, the skater's rotational speed increases. A similar thing happens when the diameter of a stellar core shrinks as it undergoes gravitational...
Neutron stars can exist in isolation, only detectable by their surface temperature, or they can dwell in partnerships with "ordinary" stars, often siphoning off their material, or in some cases, they can exist in binary systems with another neutron star. In these circumstances,according to Einstein's theory of general relativity, as these binary ne...
We asked Genevieve Schroeder, an Astronomy Ph.D. student at Northwestern University and part of the Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA), who studies some of the most powerful and violent events in the cosmos, some frequently asked questions about neutron stars.
Neutron stars are the densest and most extreme objects in the universe, formed from the cores of massive stars that collapse under gravity. Learn how neutron stars differ from black holes, what types of neutron stars exist, and how they collide and emit radiation.
Aug 15, 2024 · neutron star, any of a class of extremely dense, compact stars thought to be composed primarily of neutrons. Neutron stars are typically about 20 km (12 miles) in diameter. Their masses range between 1.18 and 1.97 times that of the Sun, but most are 1.35 times that of the Sun.
- The Editors of Encyclopaedia Britannica
Mar 28, 2023 · A neutron star is a tiny, dense and superdense object that forms from the core of a massive star after a supernova explosion. Learn how neutron stars are composed, how they emit radio waves, and how they are related to black holes and heavy elements.
Dec 27, 2023 · Neutron stars are the densest and fastest stars in the universe, formed when massive stars collapse under their own gravity. Learn how they create heavy elements, probe quantum physics, and challenge our understanding of black holes.
Sep 23, 2021 · Learn what neutron stars are, how they form, and how they can be observed as pulsars or magnetars. Neutron stars are the densest objects in the universe, with extremely strong magnetic fields and fast rotation.
Dec 31, 2021 · Neutron stars are ultra-dense spheres of neutrons that form from the collapse of massive stars in supernovae. They are among the densest objects in the cosmos and produce heavy elements, radio waves, and gravitational waves.
