Abstract
We have used the Parkes Multibeam system and the Sloan Digital Sky
Survey 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 nine 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 five 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.
Original language | English |
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Pages (from-to) | 340-356 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 394 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Mar 2009 |
Externally published | Yes |