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R.E. Wilcox (University of Washington), K. O'Neil, J.A. Eder (Arecibo Observatory)
Presented here is a new survey of HI observations of disk galaxies using the upgraded Arecibo 305m Gregorian telescope. The upgraded Arecibo telescope has considerably higher sensitivity than has been previously available. Additionally, the telescope has a new correlator which provides considerably less noise, higher (velocity) resolution, and flatter baselines than were available with the pre-upgrade system. Taking advantage of the upgraded system, we have obtained multiple high resolution spectra of HI-rich galaxies which lie within the declination range covered by the Arecibo telescope and across twenty-four hours in Right Ascension. Here we present the preliminary results from our survey and a comparison between our results and all previous observations taken of the studied galaxies.
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Bulletin of the American Astronomical Society, 34, #4
© 2002. The American Astronomical Soceity.