All Perseus in Sub-millimeter continuum (850 microns)

<p><b>Update:</b><br /> It has come to our attention that the original COMPLETE 6" pixel SCUBA maps had a calibration error, resulting in the flux per beam being undervalued by a factor of 2. This error has been corrected as of July 9th 2007 and new versions (v3) of the maps are now available through the following pages. </p> <p> A new version 2 was posted April 11, 2006. This version includes a small fix to the headers which results in a 1/2 - 1 pixel shift in the map. This datafile is called
PerA_850umJCMT_F_v2.fits, and has been superseded by version 3 (above).
</p> <p><b>Description:</b><br /> Our data was taken between August and October 2003 in fast-scanning mode and is combined with archival data. Flux units are in Jy per 15 arcsecond beam. </p> <p>This version 3 (posted July 9, 2007) includes a calibration fix, as the old maps had the flux per beam being undervalued by a factor of 2. Also incorporates the fix in version 2. This version should be used rather than older versions.</p> <p>Version 2 (posted April 11, 2006) includes a small fix to th
e headers which results in a 1/2 - 1 pixel shift in the map. </p> <p><b>Telescope:</b><br /> <a href="http://www.jach.hawaii.edu/JACpublic/JCMT/">JCMT</a> </p> <p><b>Status:</b><br /> Final</p> <p><b>Sampling:</b><br /> Sensitivity: 40 mJy per beam<br /> Waveband: 850 microns<br /> Resolution: 15 arcseconds (features larger than 1.5 arcminues have been removed) </p> <p><b>Areal Coverage:</b><br /> 3.8 square degrees </p> <p><b>Map Center (Galactic):</b><br /> NA <br /> NA</p> <p><b>Map Cen
ter (J2000):</b><br /> RA = 03:36:37 <br /> Dec = 31:32:19 </p> <p><b>Comments on Processing:</b><br /> As previously - flatfield. despike, weather, chop deconvolution (see Johnstone et al. 2000, ApJS, 131, 505)</p> <p><b>Additionally: </b><br /> - data gaussian smoothed with sigma = 1pixel (smoothing some of noise)<br /> - large scale structure removed through creating large scale smoothed map which is subtracted from the data. This map is made by replacing all large (positive and negative) p
ixels by 0 (large was taken to be +/- 0.25Jy/beam) (This prevents some of the characteristic 'bowls' seen around maps that have only been smoothed and not zeroed for flattening.), followed by smoothing this map on large scales (15 pixels = 1.5arcmin). This is then removed from the original data.
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