2. Observations and data reduction
SCUBA:Jiggle maps at 450 and 850 µm with 15" FWHM spatial resolution were obtained on July 3rd, 1999, under excellent and stable conditions ( = 0.2090.003). The observing time was 22 min. The atmospheric transmission was determined from sky dips, and Mars and Uranus served as standard calibrators. The data were reduced using the SCUBA User Reduction Facility (SURF) including identification of noisy bolometer pixels and removal of sky noise.
ISOPHOT:The 60 and 100 µm data were retrieved from the ISO Data Archive and reduced from raw data level using the ISOPHOT Interactive Analysis tool (PIA V7.3). With a detector pixel size of 46" and oversampling in steps of 15" 23" the maps reach a spatial resolution of about 30" FWHM. Astrometry has to be considered with care, as the separation of point sources closer than the detector pixel size can be affected.
© European Southern Observatory (ESO) 2000
Online publication: April 17, 2000