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dc.contributor.authorPachoulakis, Ioannisen
dc.coverage.spatialCY - Λευκωσίαen
dc.creatorPachoulakis, Ioannisen
dc.date.accessioned2016-02-02T08:34:13Z
dc.date.available2016-02-02T08:34:13Z
dc.date.issued2007
dc.identifier.urihttp://hdl.handle.net/10797/14557en
dc.descriptionΠεριέχει το πλήρες κείμενοel
dc.description.abstractMultimedia technologies are invaluable in generating realistic content and applications which increase the effectiveness and communication impact of research results. The functional keyword “realistic” means content that is based on physical modeling and, therefore, is physically sound. The present article reports on a novel custom-built toolkit intended to train budding astronomers into simulating and visualizing the composite 3D structure of winds from hot close double stars by implementing a technique which is similar to multi-directional medical tomography. In such hot binaries, the light sources that scan and probe the composite wind volume are the bright “surfaces” (photospheres) of the individual stars. Then, as the Keplerian orbit is traced out and the geometry presented to the observer varies, each star constitutes an analyzer upon its companion's wind. In contrast to medical tomography, however, these targets are too far to be resolved spatially so we resort to modeling the ultraviolet (UV) spectral lines of certain wind ions (e.g., N+4, Si+3, C+3) whose shapes vary with Keplerian phase as the stars revolve around their common centre of mass. The flagships of the toolkit are the Spectrum Analyzer and Animator (SA2) and the Binary 3D Renderer (B3dR). The first tool, the SA2, automates (a) the derivation of light curves from the observed spectra and (b) the generation of synthetic binary wind-line profiles which reproduce the morphologies and variabilities of the observed wind profiles. After the composite wind structure of a binary has been recovered, the B3dR is employed to visualize the results and simulate the revolution of the entire system (stars, winds and wind-interaction effects) around the common centre of mass. The B3dR thus repackages the end product of a lengthy physical modeling process to generate realistic multimedia content and enable the presentation of the 3D system from the point of view of an observer on Earth as well as from any other observer location in the Galaxy.en
dc.language.isoengen
dc.publisherUniversity of Cyprusen
dc.relation.ispartofInformation and communication technologyen
dc.rightsinfo:eu-repo/semantics/openAccessen
dc.rightsOpen Accessen
dc.sourceCBLIS Conference Proceedings 2007 Contemporary Perspective on new technologies in science and educationen
dc.titleRealistic multimedia: from physical models to Instructive multimedia contenten
dc.typeinfo:eu-repo/semantics/conferenceObjecten
dc.subject.uncontrolledtermRealistic Multimedia Contenten
dc.subject.uncontrolledtermPhysical Modelsen
dc.subject.uncontrolledterm3D visualizationen
dc.contributor.conferenceorganizerLearning in Science Group, University of Cyprusen
dc.contributor.coordinatorConstantinou, Constantinos P.en


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