Description
We present the results of ISO observations with the CAM LW3 filter, centered at {lambda}_eff_=14.3{mu}m, of 94 out of the 98 galaxies comprising the complete 60{mu}m IRAS deep survey (IDS) sample in the north ecliptic polar region. In addition, we observed a source detected by IRAS at 25{mu}m and found to have particularly interesting properties. Altogether, 106 sources were detected with a signal to noise ratio >=3 and 69 with S/N>=5 in the 3.2'x3.2' fields centered on the nominal positions of IRAS sources. Sixty-five >=3{sigma} detections (49 of which at >=5{sigma}) are likely identifications of IRAS sources. Ten additional IRAS sources have possible >=3{sigma} ISOCAM counterparts. In 6 further cases, signals at the 2-3{sigma} level were detected close to the IRAS position. Indications that IRAS sources might actually be multiple (source confusion) were found in 4 IDS fields. On the whole, we confirm the reality of 69 to 90% of IDS sources. Appropriate statistical corrections for the bias affecting faint flux estimates were applied to ISOCAM data. Ten serendipitous sources were detected at >=5{sigma}, with S(14.3{mu}m)>=3.5mJy. The corresponding areal density is consistent with that found in previous surveys. Finding charts for all observed fields are given.
|