IRAS 4A: envelope continuum emission at 880 μm and derived parametersa.
|rmsI||20 mJy beam-1|
|rmsQ||2.5 mJy beam-1|
|rmsU||2.5 mJy beam-1|
|4.1 ± 0.4 Jy|
|1.03 ± 0.02 Jy beam-1|
|FWHMd||1156 AU ()|
|160 ± 16 mJy|
|38.2 ± 2.5 mJy beam-1|
|NH2f||1.2 × 1024 cm-2|
|nH2f||1.1 × 108 cm-3|
See Appendix A of Frau et al. (2010) for details.
Diameter of the circle with the same area as the region of the source with intensity above half of the peak.
Assuming κ250 GHz = 1.5 cm2 g-1 and a gas-to-dust ratio of 100 (Girart et al. 2006).
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