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At the Quark Matter conference today and at the recent Rencontres de Moriond conference, the LHCb collaboration presented an analysis of particle collisions at the Large Hadron Collider (LHC) that may...
IMAGE RELEASE:Shocking Results of Galaxy-Cluster Collisions（图）
Shocking Results Galaxy-Cluster Collisions
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2017/11/23
A giant collision of several galaxy clusters, each containing hundreds of galaxies, has produced this spectacular panorama of shocks and energy. The collisions generated shock waves that set off a cel...
Collisions and Gravitational Reaccumulation:Forming Asteroid Families and Satellites
Collisions and Gravitational Asteroid Families Satellites
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2015/12/25
Numerical simulations of the collisional disruption of large asteroids show that although the parent body is totally shattered, subsequent gravitational reaccumulation leads to the formation of an ent...
Direct N-body Simulations of Rubble Pile Collisions
asteroids collisional physics impact processes planetary formation planetesimals
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2015/12/25
There is increasing evidence that many kilometer-sized bodies in the Solar System are piles of rubble bound together by gravity. We present results from a project to map the parameter space of collisi...
Cosmic Bubble Collisions
Cosmic Bubble Collisions
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2011/10/9
I briefly review the physics of cosmic bubble collisions in false-vacuum eternal inflation. My purpose is to provide an introduction to the subject for readers unfamiliar with it, focussing on recent ...
Considerations on the accretion of Uranus and Neptune by mutual collisions of planetary embryos in the vicinity of Jupiter and Saturn
planetary systems – planets and satellites: formation – planets and satellites: individual: Uranus, Neptune – protoplanetary disks
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2011/10/8
Modeling the formation of Uranus and Neptune is a long-lasting problem in planetary science. Due to the gas-drag, collisional damping, and resonant shepherding, the planetary embryos repel the planete...
Emergent Flux from Particle Collisions Near a Kerr Black Hole
Cosmology and Extragalactic Astrophysics (astro-ph.CO) General Relativity and Quantum Cosmology (gr-qc)
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2011/1/4
The escape fraction at infinity is evaluated for massless particles produced in collisions of weakly interacting particles accreted into a density spike near the particle horizon of an extremal Kerr b...
Far-ultraviolet surveys of globular clusters：searching For the products of stellar collisions and near misses
Far-ultraviolet surveys stellar collisions globular clusters
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2009/6/17
Far-ultraviolet surveys of globular clusters：searching For the products of stellar collisions and near misses。
The Collisions of HVCs with a Magnetized Gaseous Galactic Disk
Collisions of HVCs Magnetized Gaseous Galactic Disk
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2009/6/5
The Collisions of HVCs with a Magnetized Gaseous Galactic Disk。
BINARY COLLISIONS IN POPOVICI'S PHOTOGRAVITATIONAL MODEL
BINARY COLLISIONS POPOVICI'S PHOTOGRAVITATIONAL MODEL
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2009/3/13
The dynamics of bodies under the combined action of the gravitational
attraction and the radiative repelling force has large and deep implications in
astronomy. In the 1920s, the Romanian astronomer...