A CCD Analysis of NGC3379

NGC3379 is a bright, circular, well-studied galaxy.

Steve's List of NGC3379 Processing Steps.
  1. Assemble and summarize the images.


Assemble and summarize the images.

The PFC CCD collection has been reduced in with CCDRED (iraf) and the processed images reside in $scohome/Red_PhaseI_Data/. 

% ls 
% fits_name_grab /home/sco/sco/Red_PhaseI_Data N3379 ./ngc3379

Searching for images with object = N3379
Start: Fri Sep  5 18:41:21 CDT 2014
Copying: /home/sco/sco/Red_PhaseI_Data/apr_2004_p1/Rsco2039.fits
Copying: /home/sco/sco/Red_PhaseI_Data/apr_2004_p1/Rsco2042.fits
Copying: /home/sco/sco/Red_PhaseI_Data/apr_2004_p1/Rsco2041.fits
Copying: /home/sco/sco/Red_PhaseI_Data/apr_2004_p1/Rsco2043.fits
Copying: /home/sco/sco/Red_PhaseI_Data/apr_2004_p1/Rsco2040.fits

End: Fri Sep  5 18:45:13 CDT 2014

% ls
ngc3379/
% ls ./ngc3379/
Rsco2039.fits  Rsco2040.fits  Rsco2041.fits  Rsco2042.fits  Rsco2043.fits
To summarize the images I have in ngc3379/ I use run_imglis_all. Briefly, the run looks like: 
 
% run_imglis_all ./ngc3379 N3379 
% ls  
LIST_IMS_N3379_ALL  LIST_IMS_N3379_B  LIST_IMS_N3379_R  
LIST_IMS_N3379_V    ngc3379/

% cat LIST_IMS_N3379_ALL 
./ngc3379/Rsco2039.fits N3379 R
./ngc3379/Rsco2041.fits N3379 R
./ngc3379/Rsco2040.fits N3379 R
./ngc3379/Rsco2043.fits N3379 V
./ngc3379/Rsco2042.fits N3379 B
Now I know the filters for each image in my set of NGC 3779 images. The individual filter images can be used for various things like image stacking, which I cover below. At this stage, I used ds9 to inspect the images and I noticed saturated images in the R, so I list all integration times: 
% gethead *.fits EXPTIME
Rsco2039.fits 60.00
Rsco2040.fits 600.00
Rsco2041.fits 600.00
Rsco2042.fits 600.00
Rsco2043.fits 600.00
The the 2 600sec R images (Rsco2040,Rsco2041) are clearly badly saturated in the core of NGC3379.



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