Date:    21 October 1996
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Figure Captions:
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Displayed here are prelimiary PHT-S spectra of galaxies arranged in order
of increasing IRAS 60um-to-100um flux density ratio.  Each galaxy contains
two spectra displayed side by side, one from 2.5 to 5 microns (64 pixels)
and the other from 6 to 12 microns (64 pixels).
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Remarks:      
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   The 6-to-12um range is dominated by known PAH features at 6.2, 7.7, 8.6, 
   and 11.3 microns.  The 2-to-5um range is quite noisy, making it difficult
   to address any possible line features.  The 10 or so pixels shortward of
   3 microns are known to have problems, so the apparent up-rising of the 
   spectram towards the short wavelength end may not be real.
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   The flux scale shown is in Jy (assuming point sources for now; these will
   be revised to be flux densities within the PHT-S 24"x24" aperture).  
   Based on the current calibration tables, the absolute flux scale is 
   probably good only to a factor of 2 to 3. But the relative 
   (wavelength-to-wavelength) flux accuracy could be as accurate
   as within 30% to 40% (excluding some end pixels).
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   These are all 16 PHT-S spectra shipped to IPAC by 19 October 1996, 
   reduced by N. Y. Lu with PIA (v4.9.5):
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   ---------<BR>
   Galaxy     <BR>
   ---------  <BR>
   IC 0883    <BR>
   IC 4595    <BR>
   NGC 3583   <BR>
   NGC 3620   <BR>
   NGC 3683   <BR>
   NGC 3705   <BR>
   NGC 3949   <BR>
   NGC 4102   <BR>
   NGC 4194   <BR>
   NGC 4490   <BR>
   NGC 5962   <BR>
   NGC 6286   <BR>
   NGC 7771   <BR>
   NGC 5713   <BR>
   NGC 5866   <BR>
   NGC 6753   <BR>
<img src="gif/fig1_lu.gif">
   
<img src="gif/fig2_lu.gif">
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<img src="gif/fig3_lu.gif">
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