Fig. 3
(a) SPIRE FTS unapodized spectra at the positions of Sgr B2(M) (orange) and Sgr B2(N) (grey) obtained with the extended calibration. (b) Same spectra in Jy/beam (with variable beam size in frequency) obtained with the pointed calibration mode. (c) Final spectra in Jy (within a beam size of FWHM = 40″), corrected with the new calibration tool developed for semi-extended sources.
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