0000000000800402

AUTHOR

S. Hosaka

showing 2 related works from this author

Round Robin computer simulation of ejection probability in sputtering

1989

Abstract We have studied the ejection of a copper atom through a planar copper surface as a function of recoil velocity and depth of origin. Results were obtained from six molecular dynamics codes, four binary collision lattice simulation codes, and eight Monte Carlo codes. Most results were found with a Born-Mayer interaction potential between the atoms with Gibson 2 parameters and a planar surface barrier, but variations on this standard were allowed for, as well as differences in the adopted cutoff radius for the interaction potential, electronic stopping, and target temperature. Large differences were found between the predictions of the various codes, but the cause of these differences…

Nuclear and High Energy PhysicsChemistryBinary number02 engineering and technology021001 nanoscience & nanotechnologyCollision01 natural sciencesComputational physicsMolecular dynamicsPlanarSputteringLattice (order)0103 physical sciencesRecoil velocityCutoffStatistical physics010306 general physics0210 nano-technologyInstrumentation
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Characterizing Lenses and Lensed Stars of High-magnification Single-lens Gravitational Microlensing Events with Lenses Passing over Source Stars

2012

We present the analysis of the light curves of 9 high-magnification single-lens gravitational microlensing events with lenses passing over source stars, including OGLE-2004-BLG-254, MOA-2007-BLG-176, MOA-2007-BLG-233/OGLE-2007-BLG-302, MOA-2009-BLG-174, MOA-2010-BLG-436, MOA-2011-BLG-093, MOA-2011-BLG-274, OGLE-2011-BLG-0990/MOA-2011-BLG-300, and OGLE-2011-BLG-1101/MOA-2011-BLG-325. For all events, we measure the linear limb-darkening coefficients of the surface brightness profile of source stars by measuring the deviation of the light curves near the peak affected by the finite-source effect. For 7 events, we measure the Einstein radii and the lens-source relative proper motions. Among the…

Physics010308 nuclear & particles physicsBrown dwarfFOS: Physical sciencesAstronomy and Astrophysicsgravitational lensing: microAstrophysicsMass ratioLight curveGravitational microlensing01 natural sciencesGalaxy: bulgeGalaxy: bulge gravitational lensing: microEinstein radiuslaw.inventionLens (optics)StarsAstrophysics - Solar and Stellar AstrophysicsSettore FIS/05 - Astronomia e AstrofisicaSpace and Planetary Sciencelaw0103 physical sciencesSurface brightness010303 astronomy & astrophysicsSolar and Stellar Astrophysics (astro-ph.SR)
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