Christopher edited Setup.tex  about 10 years ago

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\section{Setup}  The Common Astronomy Software Applications (CASA) is a software package that allows us to simulate observations with various interferometers and single dish telescopes. It also has tools that allow us to analyse this data.  We will be running two tasks in CASA. The first, simobserve, will simulate an observation with various specified parameters. The second, simanalyze, will deconvolve and clean the observation.  \subsection{Observation}  The data provided were in fits  cubes with 256 pixels/channels on each dimension. This represented an area of 0.26pc by 0.26pc, with a 20 km/s wide spectrum centered at the 0-1 transition of 13CO ^{13}CO  and 12CO. These were used as the simobserve skymodel.  When processing the synthetic images through casa, using simobserve, we assume distance of 450 pc to the source. This was chosen as it is the distance of HH46/47, a molecular outflow powered by a forming star that has been recently observed with ALMA (Arce et al. 2013).