Statistics – Methodology
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.7723s&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #77.23; Bulletin of the American Astronomical Society, V
Statistics
Methodology
Scientific paper
The connection between characteristic properties of galaxies and their local environments is an important tool in understanding the life history of galaxies, their formation, and their effects on the large-scale structure of the universe. However, while there has been significant progress in understanding galaxy properties with relation to local densities and nearby cluster distances, fundamental questions still remain unanswered.
Three-dimensional field mapping techniques are explored as a means of investigating the environmental dependence of characteristic properties of galaxies in large data sets. Field maps are applied to the Millenium Run semi-analytic galaxy catalog to create a baseline of methodology against a simulated data set. The field maps are then extended for application to the Data Release 5 of the Sloan Digital Sky Survey.
An open architecture is presented as a framework for further studies of the correlational dependence of arbitrary characteristics. In particular, the techniques are being applied in current investigation towards an understanding of the relationships of metallicity, densities, star formation, mass, and luminosities in local environments in the DR5 of the SDSS.
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