Search results for "Institute of Heritage Sciences"

showing 3 items of 3 documents

CGCG 480-022: A Distant Lonesome Merger?

2006

[EN]We present a complete analysis, which includes morphology, kinematics, stellar populations, and N-body simulations, of CGCG 480-022, the most distant (cz = 14,317 km s-1) isolated galaxy studied so far in such detail. The results all support the hypothesis that this galaxy has suffered a major merger event with a companion of ~0.1 times its mass. Morphology reveals the presence of a circumnuclear ring and possibly further ring debris. The radial velocity curve looks symmetrical, while the velocity dispersion increases with radius, reaching values that do not correspond to a virialized system. Moreover, this galaxy deviates significantly from the fundamental plane and the Faber-Jackson r…

Stellar populationFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsKinematicsAstrophysicsabundances [galaxies]kinematics and dynamics [galaxies]galaxies: interactionsgalaxies: kinematics and dynamicsAstrophysics::Galaxy AstrophysicsPhysicsgalaxies: individual (CGCG 480 022)interactions [galaxies]Instituto de Ciencias del PatrimonioStar formationAstrophysics (astro-ph)Velocity dispersionAstronomy and Astrophysicsindividual (CGCG 480 022) [galaxies]GalaxyInstitute of Heritage SciencesRadial velocitySpace and Planetary ScienceIncipitstructure [galaxies]galaxies: structuregalaxies: abundancesAstrophysics::Earth and Planetary AstrophysicsFundamental plane (elliptical galaxies)n-body simulations [methods]methods: n-body simulationsThe Astrophysical Journal
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A propósito del Bronce Atlántico y el origen de los calderos de remaches peninsulares

2002

[ES] Los calderos atlánticos de remaches de la Península Ibérica son datados con frecuencia en los ss. VIII-VII, aunque recientes publicaciones plantean que el origen de esta producción metálica en ámbito peninsular podría ser anterior. Intentamos mostrar, sobre la base de contextos estratigráficos y dataciones radiocarbónicas, que los calderos atlánticos de remaches aparecen en la Península Ibérica en el transcurso de los ss. XI-X cal BC.

Sistemas mundialesInstituto de Ciencias del PatrimonioLate Bronze AgePatrimonio CulturalGrupo Baioes/Santa LuziaWorld SystemsExchangeRituals of commensalityCultural Heritagelcsh:Auxiliary sciences of historyArqueologíaInstitute of Heritage SciencesBaioes / Santa Luzia GroupRituales de comensalidadMediterranean tradeIncipitlcsh:CIntercambiolcsh:ArchaeologyBronce finallcsh:CC1-960Comercio mediterráneo
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Gravitational waves from galaxy encounters

2007

We discuss the emission of gravitational radiation produced in encounters of dark matter galactic halos. To this aim we perform a number of numerical simulations of typical galaxy mergers, computing the associated gravitational radiation waveforms as well as the energy released in the processes. Our simulations yield dimensionless gravitational wave amplitudes of the order of $10^{-13}$ and gravitational wave frequencies of the order of $10^{-16}$ Hz, when the galaxies are located at a distance of 10 Mpc. These values are of the same order as those arising in the gravitational radiation originated by strong variations of the gravitational field in the early Universe, and therefore, such gra…

PhysicsNuclear and High Energy PhysicsGravitational-wave observatoryGravitational waveInstituto de Ciencias del PatrimonioAstrophysics (astro-ph)Dark matterFOS: Physical sciencesAstronomyAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsGalaxy mergerAstrophysicsGravitational energyInstitute of Heritage SciencesGeneral Relativity and Quantum CosmologyGravitational fieldgalaxy encountersgravitational wavesIncipitGravitational collapseAstrophysics::Galaxy AstrophysicsGravitational redshift
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