Mathematics – Logic
Scientific paper
Nov 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000phdt.........2j&link_type=abstract
Ph.D. Thesis (University of Groningen)
Mathematics
Logic
26
Atlases, Galaxies: Fundamental Parameters, Galaxies: Photometry, Galaxies: Ism, Galaxies: Stellar Content, Surveys
Scientific paper
The interpretation of observations of distant galaxy samples is limited by our partial knowledge of the spectrophotometric properties of the local field galaxy population. In particular, the range in properties as a function of galaxy luminosity has not been studied systematically. To remedy this situation, optical spectrophotometric and photometric observations were obtained for 196 nearby galaxies that form a representative sample of the local field population. The galaxies span the entire Hubble sequence in morphological type, as well as a wide range of luminosities and colors. In this thesis, the galaxy selection, the observations and data reduction are described, and two atlases of the primary data products are presented: one of the images and radial profiles of surface brightness and color, the other of the nuclear and integrated spectra. Furthermore, the first results of a study of the spectrophotometric properties of the sample are discussed, focusing on the use of [O II] as a tracer of star formation and on quantitative measurements of galaxy morphology. The spectrophotometric database is anticipated to be useful as a benchmark for studies of galaxies at both low and high redshifts.
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