Computer Science – Databases
Scientific paper
Apr 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..761..409w&link_type=abstract
THE SPECTRAL ENERGY DISTRIBUTIONS OF GAS-RICH GALAXIES: Confronting Models with Data; International Workshop. AIP Conference Pr
Computer Science
Databases
2
Hi Regions And 21-Cm Lines, Diffuse, Translucent, And High-Velocity Clouds, Astronomical Catalogs, Atlases, Sky Surveys, Databases, Retrieval Systems, Archives, Etc., Origin, Formation, Evolution, Age, And Star Formation
Scientific paper
We present preliminary results from a study of HI selected galaxies that fall within both the HI Parkes All Sky Survey (HIPASS) and the Sloan Digital Sky Survey (SDSS). By comparing the optical properties derived from the SDSS 5-band photometry with the HI properties from HIPASS, we are able to probe the relationship between the stellar populations and the neutral gas over a range of Hubble types. Our HIPASS/SDSS catalog provides a uniform, homogeneous data set that can be used to investigate the factors that contribute to star formation on global scales. In addition, the construction of this catalog has led to a set of tools to aid in the analysis of large nearby galaxies in the SDSS. We have identified a significant group of low surface brightness (LSB) galaxies, not included in most SDSS studies. A preliminary comparison of the integrated colors of these LSB galaxies with population synthesis models reveals that many of these galaxies are not well described by simple models of star formation. Further work is needed to constrain the star formation histories of these objects.
Dalcanton Julianne J.
Disney Mike J.
Garcia-Appadoo Diego A.
West Andrew A.
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