Correlations among the properties of galaxies found in a blind HI survey, which also have SDSS optical data

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dc.creatorGarcia-Appadoo, Diego A.
dc.creatorWest, Andrew A.
dc.creatorDalcanton, Julianne J.
dc.creatorCortese, Luca
dc.creatorDisney, Michael J.
dc.date2008-09-09
dc.date.accessioned2026-07-07T12:49:28Z
dc.date.available2026-07-07T12:49:28Z
dc.descriptionWe have used the Parkes Multibeam system and the Sloan Digital Sky Survey (SDSS) to assemble a sample of 195 galaxies selected originally from their HI signature to avoid biases against unevolved or low surface brightness objects. For each source 9 intrinsic properties are measured homogeneously, as well as inclination and an optical spectrum. The sample, which should be almost entirely free of either misidentification or confusion, includes a wide diversity of galaxies ranging from inchoate, low surface brightness dwarfs to giant spirals. Despite this diversity there are 5 clear correlations among their properties. They include a common dynamical mass-to-light ratio within their optical radii, a correlation between surface-brightness and Luminosity and a common HI surface-density. Such correlation should provide strong constrains on models of galaxy formation and evolution.
dc.description17 pages, 22 figures, submitted to MNRAS
dc.identifierhttps://arxiv.org/abs/0809.1434
dc.identifierhttp://arxiv.org/abs/0809.1434
dc.identifierMon.Not.Roy.Astron.Soc.394:340-356,2009
dc.identifierdoi:10.1111/j.1365-2966.2008.14292.x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/222416
dc.subjectAstrophysics
dc.titleCorrelations among the properties of galaxies found in a blind HI survey, which also have SDSS optical data
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