Calibration for the HIPASS Continuum Catalogue
AG Melchiori, DG Barnes, MR Calabretta, RL Webster
Radio Science | AMER GEOPHYSICAL UNION | Published : 2011
We present a new calibration method that has enabled the production of a 1.4 GHz radio continuum survey from existing HI Parkes All Sky Survey (HIPASS) data. The method will allow accurate flux densities and spectral indices to be extracted from the raw HIPASS data set. Since existing Parkes Radio Telescope band-pass removal software produced flux density and spectral index maps which were not suitable for our catalogue, we develop a new mathematical description for the relationship of the spectral response between the processing software and the band-pass gain. Together with observations of a well-known calibration source, we determine the baseline coefficients for each beam and polarizatio..View full abstract
The Parkes telescope is part of the Australia Telescope which is funded by the Commonwealth of Australia for operation as a National Facility managed by CSIRO. Special thanks to observers J. Stevens and E. Ryan-Weber. Thanks to our reviewers whose helpful comments greatly improved this paper. This paper would not have been possible without the support of the David Hays Memorial Fund.