All Ophiuchus in Sub-millimeter continuum (850 microns)

Update: 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. 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 This datafile is called O phA_850umJCMT_F_v2.fits, and has been superseded by version 3 (above). Description: This file includes our own observations taken with SCUBA between March 2003 and January 2005 in fast-scanning mode, as well as archival data. Flux units are in Jy per 15 arcsecond beam. 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. Version 2 (posted April 11, 20 06) includes a small fix to the headers which results in a 1/2 - 1 pixel shift in the map. Telescope: JCMT Status: Preliminary Sampling: Sensitivity: 40 mJy per beam Waveband: 850 microns Resolution: 15 arcseconds (features larger than 1.5 arcminues have been removed) Areal Coverage: 5.5 square degrees Map Center (Galactic): NA NA Map Center (J2000): RA = 16:28:34 Dec = -23:54 :54 Comments on Processing: As previously - flatfield. despike, weather, chop deconvolution (see Johnstone et al. 2000, ApJS, 131, 505) Additionally: - data gaussian smoothed with sigma = 1pixel (smoothing some of noise) - 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) pixels by 0 (large was taken to be +/- 0.25Jy/beam) (Thi s 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.