Table 2
Observed H2O line parameters.
| Source | νpeak |
|
Δν1/2 | rms |  dv |
| [km s-1] | [K] | [km s-1] | [K] | [K km s-1] | |
|
|
|||||
| o Cetib | 48.1 | 6.1 | 4.8 | 0.08 | 32.5 |
| R Hora | 37.7 | 0.6 | 2.4 | 0.19 | 1.0 |
| RT Eria | 24.9 | 0.4 | 3.3 | 0.11 | 0.7 |
| IK Taub | 32.8 | 5.8 | 4.4 | 0.19 | 27.2 |
| VY CMad | 20.1 | 5.3 | 10.7 | 0.12 | 51.0 |
| RT Vira | 17.0 | 1.8 | 7.6 | 0.14 | 12.4 |
| R Hyac | −9.1 | 3.8 | 2.9 | 0.13 | 14.2 |
| W Hyad | 41.3 | 17.3 | 4.4 | 0.14 | 97.2 |
| RU Hyaa | −2.8 | 0.3 | 4.0 | 0.09 | 0.5 |
| AH Scoa | −2.7 | 3.2 | 5.8 | 0.12 | 22.5 |
| X Pava | −16.4 | 0.6 | 6.3 | 0.11 | 3.2 |
Notes. νpeak and are the velocity and antenna temperature at the 658 GHz line peak. Δν1/2 is the full line width at half-maximum for comparison with thermally excited lines. The rms in the fifth column is the noise outside the 658 GHz features for one 0.14 km s-1 channel (0.17 km s-1 for VY CMa). In the last column we give the line area, dv, for all channels three times above the rms.
Hunter et al. (2007), no spectrum shown.
First detected by Menten & Young (1995).
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