It turns out that the bandpass at the offset frequencies are not necessarily a good match the bandpass at the source frequency. This is unfortunate. When applying...
Here's a page where to list the CVEL tests done in light of the recent bug. Adrienne's current approach to the problem is to re run the post calibration steps on ...
Data Reduction * Data Sets that need to be reobserved * list of observations that need to be redone * NGC253 mosaic in B, C, D Archival Data Set info c...
The Jorsater van Moorsel method This is a method for correcting for flux in images. For a cleaned cube, the flux is: G = C R where C is the cleaned map and R is...
EVERYTHING FOLLOWING IS OLD AND SHOULD BE IGNORED: * aipsCalibration_2.txt: Updated AIPS reduction script * miriadImaging_2.txt: Updated miriad imaging script; ...
General steps:1) run IMAGR in AIPS, then switch to miriad (run velsw!) 2) clean 3) restor 4) smooth x y 5) hanning smooth v axis 6) cut everything above 2.5 sigma...
Imaging is a beast and we're using two different packages to do it. MSClean has failed us so far. Apparently our signal to noise isn't so good. Also, we want a be...
Here are some notes from watching Eric Greisen try to clean our data. Inputs to IMAGR for MS Clean: imagrprm(11): this is the bias ngauss: number of gaussians...
1 Flag CH0 in TVFLG on galaxy with calibration applied. This will look for any extremely high points that cover a lot of the line channels. 1 Copy flag table t...
flag CH 0 in TVFLG on galaxy with calibration applied (before SPLIT) copy flag table to LINE data SPLIT line data WIPER on line data check for EXTREMELY HIGH...
AIPS Scripts MANDATORY ::: Make your directory names (dgal) the same as you want your file names to have (up to 6 characters). It is easiest if you set dgal and g...
To smooth (in miriad): 1) task convol; in = *.clean.restor; out = *.clean.restor.convol; fwhm = 2*fwhm, 2*fwhm; options=final 2) hanning smooth in velocity space ...
Comparison with THINGS Here is a spectrum comparing the data reduction (somewhat). We ran their UV data through our pipeline, and ran SPLIT, CVEL, and IMAGR. We ...