Computer Science – Databases
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aipc..666..315n&link_type=abstract
THE EMERGENCE OF COSMIC STRUCTURE: Thirteenth Astrophysics Conference. AIP Conference Proceedings, Volume 666, pp. 315-318 (200
Computer Science
Databases
1
Galaxy Clusters, Astronomical Catalogs, Atlases, Sky Surveys, Databases, Retrieval Systems, Archives, Etc.
Scientific paper
The NOAO Fundamental Plane Survey (NFPS) is a deep, homogeneous, all-sky spectroscopic and photometric study of 100 X-ray selected clusters within 200 h -1 Mpc (z < 0.06) with the principle goal of determining the large-scale flow of clusters with respect to the CMB. The photometry of tens of thousands of galaxies in two colors (B and R) will yield quantitative morphological information; spectroscopic parameters of early-type galaxies will include velocity dispersions, line indices, and redshifts. When combined with high-quality Fundamental Plane parameters, these measurements will shed light on the evolution of galaxies in the cluster and environmental dependences of spectroscopic parameters. Early results include detection of a significant dependence of the Mgb index on cluster-centric radius for Abell 3558, which can be interpreted as a gradient in metallicity or abundance ratios, but is not compatible with an age gradient. In addition, we have used the photometric catalogues to construct maps of the color-magnitude scatter as a function of position. Substructures identified in these maps often correspond with known X-ray/velocity subsystems.
Davies Roger L.
Hudson Michael J.
Lucey John R.
Malecki Jacek
Moore Stephen A. W.
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