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Table C.2

N2H+ and N2D+ parameters for VLA 1623−2417.

Observed

Parameter N2H+ 1–0a N2H+ 6–5b N2D+ 1–0a N2D+ 2–1a
Tmb (K) 3.3  ± 0.1 0.2  ± 0.1 0.57  ± 0.1 1.5  ± 0.2
Δvsingle dish (km s−1) 0.56  ± 0.005 0.7  ± 0.2 0.55  ± 0.032 0.55  ± 0.009
ηmb 0.95 0.63 0.95 0.94
Ωbeam (′′) 26.5 36 32.1 16.3


Ratio 0.06 ± 0.03 2.6 ± 0.6
Column density (cm−2) 1.3 × 1013 1.8 × 1012
H2 density (cm−3) 5 × 107–7 × 109 5 × 107–7 × 109
Tex (K) 11–12 11–12

Ωsource = Ωbeam N2H+ 4–3 N2D+ 3–2

Iν,predicted (mJy beam−1) 99 22
Ωbeam,obs (′′) 0.85 0.76
σobs (mJy beam−1) 94.9 8.58
SN 1 2.6

Ωsource  = 1′′ N2H+ 4–3 N2D+ 3–2

Iν,predicted (mJy beam−1) 2631 364
Ωbeam,obs (′′) 0.85 0.76
σobs (mJy beam−1) 94.9 8.58
SN 27 42

Notes. (a) IRAM 30 m observations from Punanova et al. (2016). (b)Herschel observationsfrom Favre et al. (2017).

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