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FORMATION OF KUIPER BELT BINARIES BY GRAVITATIONAL COLLAPSE
Kuiper Belt general – planets and satellites formation – protoplanetary disks
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2015/12/25
A large fraction of {approx}100 km class low-inclination objects in the classical Kuiper Belt (KB) are binaries with comparable masses and a wide separation of components. A favored model for their fo...
Collapse modes of structures under strong motions of earthquake
collapse mode damage concentration P-d effect flexible-stiff mixed structure
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2015/9/25
Under strong motion earthquakes, structures receive various types of damage. The most fatal damage is the loss of lateral strengths of a structure. The loss of lateral resistance causes a total collap...
Salt marshes are among the most productive ecosystems on Earth, providing nurseries for fish species and shelter and food for endangered birds. Salt marshes also mitigate the impacts of hurricanes and...
A SIMPLE MODEL FOR ASSET PRICE BUBBLE FORMATION AND COLLAPSE
ASSET PRICE BUBBLE FORMATION COLLAPSE
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2015/7/14
We consider a simple stochastic differential equation for modeling bubbles in social context. A prime example is bubbles in asset pricing, but similar mechanisms may control a range of social phenomen...
New developments in the analysis of column-collapse pyroclastic density currents through numerical simulations of multiphase flows
column-collapse pyroclastic density currents numerical simulations of multiphase flows
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2015/1/4
A granular multiphase model has been used to evaluate the action of differently sized particles on the dynamics of fountains and associated pyroclastic density currents. The model takes into account t...
New developments in the analysis of column-collapse pyroclastic density currents through numerical simulations of multiphase flows
column-collapse pyroclastic density multiphase fl ows
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2015/1/4
A granular multiphase model has been used to
evaluate the action of differently sized particles on the dynamics of fountains and associated pyroclastic density currents.
Dipole Collapse and Dynamo Waves in Global Direct Numerical Simulations
Dipole Collapse Dynamo Waves Global Direct Numerical Simulations
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2012/2/23
Magnetic fields of low-mass stars and planets are thought to originate from self-excited dynamo action in their convective interiors. Observations reveal a variety of field topologies ranging from lar...
Dynamic Collapse of Honeycombs under In-plane Compressions
cellular materials circular honeycombs in-plane compression dynamic collapse mode critical velocity
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2012/9/24
Based on our experimental and numerical studies, the present paper mainly describes our findings in the quasi-static and dynamic collapse of honeycombs under in-plane compression. In quasi-static expe...
SN 2008jb: A "Lost" Core-Collapse Supernova in a Star-Forming Dwarf Galaxy at ~10 Mpc
SN 2008jb Core-Collapse Supernova Star-Forming Dwarf Galaxy
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2011/10/19
We present the discovery and follow-up observations of SN 2008jb, a core-collapse supernova in the dwarf irregular galaxy ESO 302-14 at 9.6 Mpc. This transient was missed by galaxy-targeted surveys an...
Collapse thresholds for the formation of CDM haloes in the ellipsoidal collapse model
cosmology: dark matter – methods: numerical
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2011/10/20
In the excursion set approach to structure formation initially spherical regions of the linear density field collapse if the average density contrast within them exceeds some critical value, \delta_c....
The Role of Collective Neutrino Flavor Oscillations in Core-Collapse Supernova Shock Revival
Core-Collapse Supernova Shock Revival Neutrino
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2011/7/21
We explore the effects of collective neutrino flavor oscillations due to neutrino-neutrino interactions on the neutrino heating behind a stalled core-collapse supernova shock. We carry out axisymmetri...
Singular and non-singular endstates in massless scalar field collapse
Singular and non-singular endstates in massless scalar field collapse
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2011/10/14
We study the collapse of a massless scalar field coupled to gravity. A class of blackhole solutions are identified. We also report on a class of solutions where collapse starts from a regular spacelik...
Unexpected Formation Modes of the First Hard Binary in Core Collapse
Stellar dynamics, Method: N-body simulation, globular clusters: genera
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2011/10/12
The conventional wisdom for the formation of the first hard binary in core collapse is that three-body interactions of single stars form many soft binaries, most of which are quickly destroyed, but ev...
Genericity of black holes and naked singularities in gravitational collapse
Gravitational collapse black holes naked singularity
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2011/10/14
We investigate here the genericity and stability aspects for naked singularities and black holes that arise as the final states for a complete gravitational collapse of a spherical massive matter clou...
Quantum collapse in ground-state Fermi-Dirac-Landau plasmas
Quantum collapse ground-state Fermi-Dirac-Landau plasmas
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2011/10/10
It is revealed that in a relativistically degenerate dense highly-magnetized electron-ion plasma the effective quantum-potential due to the total quantum-force acting on fermions may cancel-out causin...