Computer Science – Databases
Scientific paper
Sep 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1043...46s&link_type=abstract
EXPLORING THE SOLAR SYSTEM AND THE UNIVERSE. AIP Conference Proceedings, Volume 1043, pp. 46-49 (2008).
Computer Science
Databases
Astronomical Observations, Origin And Formation Of The Universe, Radio Telescopes And Instrumentation, Heterodyne Receivers, Galaxy Groups, Clusters, And Superclusters, Large Scale Structure Of The Universe, Astronomical Catalogs, Atlases, Sky Surveys, Databases, Retrieval Systems, Archives, Etc., Distances, Redshifts, Radial Velocities, Spatial Distribution Of Galaxies
Scientific paper
At the Bucharest Observatory cosmology started in the early'80s as a theoretical branch directly related to the computational facilities available in our Observatory. With the help of our instruments, from a small Z8080 computer (early'80s) to a superscalar supercomputer of 44 processors (now), our cosmology team has developed models, methods and techniques related to: the investigation of 2D and 3D catalogues of galaxies, clusters and superclusters; investigation of the log tails of the 2-points correlation functions; cosmological simulations (N-body+SPH) of the Large Scale Structure of the Universe (LSS) investigation of environmental effects in clusters of galaxies; application of neural methods in cosmology. The use of such models and techniques has permitted us to study problems concerning: correlated signals in the long tail of the correlation functions for galaxies, clusters and superclusters (due to baryon oscillations) HD simulations of the LSS and of the evolution of the first and secondary Web structures; studies of the epochs of the formation of DM halos in a LCDM scenario (earlier than z 15) studies of the evolution of halos and galaxies due to the parental merging phenomena; detection of the Butcher-Oemler and Oemler-Butcher effects in far or close clusters; studies of E+A galaxies; study of the synthetic spectra of galaxies and of the chemo-spectro-photometrical evolution of galaxies (for z<30) photometric redshift determination (for z<10).
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