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NRAO Home > CASA > CASA Cookbook and User Reference Manual |
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6.6.2 Examples using (immoments)
For example, using the NGC5921 example (§ F.1):
imagename = ’ngc5921.demo.cleanimg’
# Do first and second spectral moments
axis = ’spectral’
chans = ’’
moments = [0,1]
# Need to mask out noisy pixels, currently done
# using hard global limits
excludepix = [-100,0.009]
outfile = ’ngc5921.demo.moments’
immoments()
# It will have made the images:
# --------------------------------------
# ngc5921.demo.moments.integrated
# ngc5921.demo.moments.weighted_coord
Other examples of NGC2403 (a moment zero image of a VLA line dataset) and NGC4826 (a moment one image of a BIMA CO line dataset) are shown in Figure 6.1.
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ALERT: We are working on improving the thresholding of planes beyond the global cutoffs in includepix and excludepix.
More information about CASA may be found at the
CASA web page
Copyright © 2010 Associated Universities Inc., Washington, D.C.
This code is available under the terms of the GNU General Public Lincense
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