Table 2.
Summary of molecular emission and absorption line properties in HerBS-89a, obtained by the line fitting.
Molecule | Transition | νrest | νobs | V | FWHM | Iline | ![]() |
|||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
− | [GHz] | [GHz] | [km s−1] | [km s−1] | [Jy km s−1] | [1010 K km s−1 pc−2] | ||||||
Emission lines | ||||||||||||
12CO | 1 − 0 | 115.271 | 29.186 | −57.6 ± 119.5 | 1443 ± 293 | 0.64 ± 0.13 | 25.76 ± 5.23 | |||||
3 − 2 | 345.796 | 87.549 | 0.0 | 1102 ± 83 | 4.00 ± 0.60 | 17.75 ± 2.66 | ||||||
5 − 4 | 576.268 | 145.902 | 0.0 | 1028 ± 107 | 8.40 ± 0.80 | 13.42 ± 1.28 | ||||||
9 − 8 | 1036.912 | 262.530 | 0.0 | 1168 ± 94 | 1.78 ± 0.21 | 0.88 ± 0.10 | ||||||
H2O | 202 − 111 | 987.927 | 250.127 | 0.0 | 1128 ± 174 | 1.59 ± 0.37 | 0.86 ± 0.20 | |||||
NH2 | 202 − 111 ( † ) | 907.433 | 229.747 | 0.0 | 972 ± 237( * ) | 0.64 ± 0.27( * ) | 0.41 ± 0.17 | |||||
220 − 211 ( † ) | 993.322 | 251.493 | 0.0 | < 0.33 | ||||||||
Absorption lines | ||||||||||||
OH+ | 11 − 01 | 1033.118 | 261.546 | +102.2 ± 13.0 | 447 ± 32 | −96 ± 0.14 | ||||||
12 − 01 | 971.804 | 246.026 | +91.6 ± 20.1 | 558 ± 51 | −3.08 ± 0.28 | |||||||
10 − 01 | 909.159 | 230.132 | +267.6 ± 32.2 | 349 ± 121 | −0.28 ± 0.15( * *) | |||||||
CH+ | 1 − 0 | 835.137 | 211.419 | +137.6 ± 12.6 | 354 ± 108( * * * ) | −0.39 ± 0.09( * * * ) | ||||||
HCN | 11 − 10( ‡ ) | 974.487 | 246.724 | 0.0 | 523 ± 239 | −0.63 ± 0.28 | ||||||
NH | 12 − 01 ( ‡ ) | 974.471 | 246.720 | 0.0 | 523 ± 239 | −0.63 ± 0.28 |
Notes. The data for the 12CO(3 − 2) and 12CO(5 − 4) emission lines are from Neri et al. (2020). The fitting of each line is shown in Fig. 5. When one parameter is quoted without uncertainty, its value was fixed during the fitting procedure. The observed line luminosities have been derived using the standard relation given by Solomon & Vanden Bout (2005) – see Sect. 6.2 and Eq. (6). ( * )Combination of the two Gaussian components. ( * *)Only the visible red component. ( * * * )Net absorption only. ( † )The two NH2 transitions are (202 − 111) (5/2 − 3/2) and (220 − 211) (5/2 − 3/2), respectively. In the case of the latter transition, we provide a 3σ upper limit. ( ‡ )In the case of the absorption line observed at 246.72 GHz, we here provide the derived properties for HCN and NH separately, noting that both molecules likely do contribute to the observed absorption (see Sect. 8.1).
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.