Free Access
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 | ||
| S∕N | 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 | ||
| S∕N | 27 | 42 | ||
Notes. (a) IRAM 30 m observations from Punanova et al. (2016). (b)Herschel observationsfrom Favre et al. (2017).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.