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Blind HI surveys provide a census of galaxies in the local universe that is unbiased by their optical properties. Even the Arecibo Dual-Beam Survey with a sample of only 265 galaxies discovered many low surface brightness galaxies and one galaxy with no obvious stellar component. Overall the galaxies in this survey display a diverse range of gas-to...
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Context 1
... observations show that selecting galaxies by their gas selects systems with a wide range in properties. Figures 1 and 2 show B-band images of spiral and low surface brightness galaxies detected in this survey. The galaxies in these two figures have been selected to come from similar distances so the systems in 2 are truly different than those in Figure 1, it isn't just a distance effect in the galaxy selection that is making them appear fainter. ...
Context 2
... 1 and 2 show B-band images of spiral and low surface brightness galaxies detected in this survey. The galaxies in these two figures have been selected to come from similar distances so the systems in 2 are truly different than those in Figure 1, it isn't just a distance effect in the galaxy selection that is making them appear fainter. ...
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