Gravitational Collapse
On the Induced Gravitational Collapse
... induced gravitational collapse (IGC) paradigm has been applied to explain the long gamma ray burst (GRB) associated with type Ic supernova, and recently the X- ray flashes ...
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Spherical Gravitational Collapse of Anisotropic Radiating Fluid Sphere
... spherical gravitational collapse was due to Oppenheimer and Snyder [4] and which apparently suggested that such a collapse results in formation of Black ...
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Late Cretaceous Gravitational Collapse of the Southern Sierra Nevada Batholith and Adjacent Areas Above Underplated Schists, Southern California
... Cretaceous gravitational collapse of the southern Sierra Nevada batholith and vicinity, focusing mainly on the magnitude, direction, and timing of tectonic transport of upper crustal fragments along a ...
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Young massive star cluster formation in the Galactic Centre is driven by global gravitational collapse of high-mass molecular clouds
... support against gravitational collapse (e.g. Girichidis et al. 2018), and thereby increase the calculated virial parameters (see Kauffmann et al. 2013). Indeed, magnetic fields over an order of magnitude ...
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Gravitational Collapse and Singularities in Some Non-Schwarzschild's Space-Times
... The occurrence of naked singularities is reflected in the Reissner-Nordstrom solution (case one). This solution violates the cosmic censorship conjecture of Roger Penrose which states that “the gravitational ...
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Gravitational Collapse of a Massive Star and Black Hole Formation
... This paper discusses the final fate of a gravitationally collapse of a massive star and the black hole formation. If the mass of a star exceeds Chandrasekhar limit then it must undergo gravitational ...
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The onset of gravitational collapse in molecular clouds
... In the course of this PhD, we have examined the nature of star formation in environments where the gas initially contains random supersonic motions, which we refer to loosely in this thesis as ‘turbulence’. The aim of ...
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Dissipative Spherical Gravitational Collapse of Isotropic Fluid
... It is an established fact that gravitational collapse is a highly dissipating energy process (Herrera and Santos [7], Herrera et al. [8], Mitra [9] and references therein) which plays a dominant role in the ...
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Gravitational Collapse of Massless Fields in an Expanding Universe
... We have considered gravitational collapse of a scalar field with the periodic boundary condition in a cubic box. This system can be regarded as a lattice universe model. We have shown that, when the initial ...
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Effect of Charge on the Gravitational Collapse of Vaidya Space Time
... In this paper we have shown the nature of radial null geodesics obtained in generalized Vaidya space times and also in charged Vaidya space time are naked. The possible occurrence o[r] ...
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Vacuum for a massless quantum scalar field outside a collapsing shell in anti-de Sitter space-time
... In the introduction, we asked whether there is a state for SadS black hole space-times which is analogous to the Unruh vacuum [2] for asymptotically flat black holes. Our analysis has indicated that the state at late ...
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On the Origin of Scales and Scaling Laws in Star Formation
... the collapse of protostellar cores. Gravitational collapse takes place during a finite amount of time during which collapse pumps energy into tur- bulence, causing the cloud to ...
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The Sun NOTES.doc
... (from gravitational collapse).. a) Fusion of elements smaller than Iron (Atomic mass 56) releases energy. b) Fusion involving elements larger than Iron need energy.. b) Fusion involvin[r] ...
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The Physical Metric and Compact Objects
... From the property of Equation (42), one may call the radius of Equation (40) the extended horizon. The passage of a particle through the extended horizon in and out is permissible. An important property of gravity is ...
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Occurrence and Nature of Singularities in (n+2) – Dimensional Monopole Vaidya Solution
... continuous gravitational collapses which has exhausted its nuclear fuel could stabilize as white dwarf or neutron ...the gravitational collapse delays the formation of horizon, then they become ...
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Asymmetric Line Profiles in Dense Molecular Clumps Observed in MALT90: Evidence for Global Collapse
... of gravitational collapse and its resulting spectral signatures in the study of star for- mation have a rich ...“inside-out” collapse theory in which the inner portions of a star-forming core, ...
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Gravitational and non-gravitational energy: the need for background structures
... interacting gravitational field, the failure of integral non-gravitational energy-momentum conservation is an obvious consequence of not taking into account gravitational energy: strictly speaking, ...
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Event horizons, gravitational waves and astrophysical kicks in black-hole spacetimes
... Moreover, the field of numerical relativity is not just coding and running simulations but also a lot of work has been done in obtaining formulations of the theory [128, 142, 143, 144, 145, 146, 147, 148]. Basically ...
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Gravitational Telescope
... A more accurate estimate will be by considering directional pattern of gravitational radiation from the pulsar. This radiation is determined by the quadrupole moment of a source that is not known a priori. The ...
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Search | Preprints
... gravitational field with the standard additional Lagrangian terms for the vector fields. It is known that dark matter has gravitational 292[r] ...
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