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Out-Of-Focus Holography at the Green Bank Telescope
B. Nikolic, R. M. Prestage, D. S. Balser +2
We describe phase-retrieval holography measurements of the 100-m diameter Green Bank Telescope using astronomical sources and an astronomical receiver operating at a wavelength of…
Measurement of Antenna Surfaces from In- and Out-Of-Focus Beam Maps using Astronomical Sources
B. Nikolic, R. E. Hills, J. S. Richer
We present a technique for the accurate estimation of large-scale errors in an antenna surface using astronomical sources and detectors. The technique requires several out-of-focus…
Giant Metrewave Radio Telescope limits on cool HI in galaxy groups
D. A. Green, M. S. Clemens, P. Alexander +2
We present Giant Metrewave Radio Telescope 21-cm HI observations towards a sample of compact radio sources behind galaxy groups, to search for cool HI. The results -- from high dyn…
A Simple Model For Mid-Infrared Emission from Normal Galaxies
B. Nikolic, P. Alexander, D. Ford
We have combined up-to-date stellar population synthesis models, a simple radiative transfer approach, and a fully comprehensive dust model with the aim of developing a simple but…