Assessment analysis of the extended emission calibration for the PACS red channel
نویسندگان
چکیده
We summarize the results obtained from the comparison of extended emission in the PACS red channel (i.e. 160μm) with corresponding data from Spitzer/MIPS 160μm. The PACS data are reduced in two independent ways: 1) with MADmap; 2) with Scanamorphos. The exercise clearly evidences MIPS flux non-linearity arising at surface brightness values greater than ∼ 50 MJy/sr. Taking this effect into account and restricting the comparison to the dynamic range in which both residual noise in the data is minimized (> 20 MJy/sr) and the two instruments are characterized by a linear response (< 50 MJy/sr), we obtain that PACS is in agreement with MIPS to within ∼ 5-20%.
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