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Table 1

Parameters for the observed HDO lines.

Frequency J Ka,Kc Eup/k A ij Telescope Beam F eff B eff rmsa dνb
(GHz) (K) (s-1) size (′′) (mK) (K km s-1)
NGC 1333 IRAS 4A
80.5783 11,0–11,1 47 1.32 × 10-6 IRAM-30 m 31.2 0.95 0.78 4 0.025 ± 0.005
225.8967 31,2–22,1 168 1.32 × 10-5 IRAM-30 m 11.1 0.91 0.54 9 0.26 ± 0.03
241.5616 21,1–21,2 95 1.19 × 10-5 IRAM-30 m 10.4 0.90 0.57 18 0.25 ± 0.04
464.9245 10,1–00,0 22 1.69 × 10-4 JCMT 10.8 – 0.44c 53 1.8 ± 0.2d
599.9267 21,1–20,2 95 3.45 × 10-3 HIFI 1b 35.9 0.96 0.75 7 ≤0.05
893.6387 11,1–00,0 43 8.35 × 10-3 HIFI 3b 24.1 0.96 0.74 4 0.55 ± 0.02d
Outflow position of NGC 1333 IRAS 4A
599.9267 21,1–20,2 95 3.45 × 10-3 HIFI 1b 35.9 0.96 0.75 7 ≤0.05
893.6387 11,1–00,0 43 8.35 × 10-3 HIFI 3b 24.1 0.96 0.74 4 0.27 ± 0.01d
NGC 1333 IRAS 4B
80.5783 11,0–11,1 47 1.32 × 10-6 IRAM-30 m 31.2 0.95 0.81 4 0.031 ± 0.009
225.8967 31,2–22,1 168 1.32 × 10-5 IRAM-30 m 11.1 0.91 0.61 9 ≤0.05
241.5616 21,1–21,2 95 1.19 × 10-5 IRAM-30 m 10.4 0.90 0.57 4 0.051 ± 0.008
464.9245 10,1–00,0 22 1.69 × 10-4 APEX 13.4 0.95 0.60 40 1.2 ± 0.1d
599.9267 21,1–20,2 95 3.45 × 10-3 HIFI 1b 35.9 0.96 0.75 6 0.07 ± 0.01
893.6387 11,1–00,0 43 8.35 × 10-3 HIFI 3b 24.1 0.96 0.74 4 0.40 ± 0.01d

Notes.The frequencies, the upper state energies (Eup), and the Einstein coefficients (Aij) of HDO come from the spectroscopic catalog JPL (Pickett et al. 1998).

(a)

The rms (in Tmb) is computed for a spectral resolution of 0.5 km s-1.

(b)

The calibration uncertainties are not taken into account in the flux uncertainties.

(c)

This value corresponds to the ratio between the beam efficiency and the forward efficiency.

(d)

For these lines, the integrated intensity is directly estimated, combining both emission and absorption components. To derive the flux of the different components (broad and narrow emission components and absorption component), we refer to Table 2.

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