Contraction of an astronomical object due to the influence of its gravity
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Gravitational collapse of a massive star, resulting in a Type II supernova
Gravitational collapse is the contraction of an astronomical object due to the influence of its own gravity, which tends to draw matter inward toward the center of gravity.[1] Gravitational collapse is a fundamental mechanism for structure formation in the universe. Over time an initial, relatively smooth distribution of matter, after sufficient accretion, may collapse to form pockets of higher density, such as stars or black holes.
As a clandestine form of gravitational collapse, the gradual gravitational collapse of interstellar medium into clumps of molecular clouds and potential protostars, is the birth of a star. The compression caused by the collapse raises the temperature until thermonuclear fusion occurs at the center of the star, at which point the collapse gradually comes to a halt as the outward thermal pressure balances the gravitational forces. The star then exists in a state of dynamic equilibrium. During the star's evolution a star might collapse again and reach several new states of equilibrium.
^Pilchin, Lev Eppelbaum, Izzy Kutasov, Arkady (2013). Applied geothermics (Aufl. 2014 ed.). Berlin, Heidelberg: Springer Berlin Heidelberg. p. 2. ISBN 9783642340239.{{cite book}}: CS1 maint: multiple names: authors list (link)
and 27 Related for: Gravitational collapse information
Gravitationalcollapse is the contraction of an astronomical object due to the influence of its own gravity, which tends to draw matter inward toward the...
S2CID 205263326. Penrose, R. (2002). "GravitationalCollapse: The Role of General Relativity" (PDF). General Relativity and Gravitation. 34 (7): 1141. Bibcode:2002GReGr...
the universe did not collapse into a black hole, because currently-known calculations and density limits for gravitationalcollapse are usually based upon...
S2CID 15819376. Fryer, C. L.; New, K. C. B. (2003). "Gravitational Waves from GravitationalCollapse". Living Reviews in Relativity. 6 (1): 2. arXiv:gr-qc/0206041...
The gravitational wave background (also GWB and stochastic background) is a random background of gravitational waves permeating the Universe, which is...
region does not exist for black holes that have formed through gravitationalcollapse, however, nor are there any observed physical processes through...
inevitably suffers gravitationalcollapse of the same sort as the end state of a contracting Friedmann universe. The time required for the collapse of the interior...
infinity or to an observer comoving with the collapsing cloud, and in the past terminates at the gravitational singularity, then that singularity is referred...
apparent horizon should be used instead of an event horizon, saying, "Gravitationalcollapse produces apparent horizons but no event horizons." He eventually...
and the propagation of light, and include gravitational time dilation, gravitational lensing, the gravitational redshift of light, the Shapiro time delay...
describes an instability that leads to the gravitationalcollapse of a cloud of gas or dust. It causes the collapse of interstellar gas clouds and subsequent...
eye—all within the Milky Way galaxy. A star's life begins with the gravitationalcollapse of a gaseous nebula of material largely comprising hydrogen, helium...
causing the star to collapse. If the center of the star is composed mostly of carbon and oxygen then such a gravitationalcollapse will ignite runaway...
of subatomic matter may have been tightly packed to the point of gravitationalcollapse, creating primordial black holes without the supernova compression...
Black holes are a class of astronomical objects that have undergone gravitationalcollapse, leaving behind spheroidal regions of space from which nothing can...
A collapsar is a star which has undergone gravitationalcollapse. When a star no longer has enough fuel for significant fusion reactions, there are three...
hypotheses are two mathematical conjectures about the structure of gravitational singularities arising in general relativity. Singularities that arise...
internal gravitational force. Mathematically this is expressed using the virial theorem, which states that, to maintain equilibrium, the gravitational potential...
nucleosynthesis, a process ultimately using the gravitational potential energy released from the gravitationalcollapse of supernovae to "store" energy in the...
result from the supernova explosion of a massive star, combined with gravitationalcollapse, that compresses the core past white dwarf star density to that...
holes and that during the gravitationalcollapse to a black hole, the entire mass energy and angular momentum of the collapsing objects is radiated away...
hole (or stellar-mass black hole) is a black hole formed by the gravitationalcollapse of a star. They have masses ranging from about 5 to several tens...
of electrons, protons, neutrons, or muons), and balanced against gravitationalcollapse by degeneracy pressure or other quantum properties. Types of exotic...
principle of equivalence of gravitational and inertial mass and uses it to predict gravitational lensing and gravitational redshift, historically known...
neutron stars, where thermal pressure alone is not enough to avoid gravitationalcollapse. The term also applies to metals in the Fermi gas approximation...
relationships. The importance of Penrose's epoch-making paper "GravitationalCollapse and Space-Time Singularities" was not its only result, summarised...
dwarfs resist gravitationalcollapse primarily through electron degeneracy pressure, compared to main sequence stars, which resist collapse through thermal...
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