Table 2
Parameters of the NH3 maser lines observed toward W51-north.
| Line | Fpeak | Vc | ΔV1/2 | Fint | Tb | ||||||||
| (J,K) | (Jy) | (km s-1) | (km s-1) | (Jy km s-1) | (104 K) | ||||||||
|
|
|||||||||||||
| (6, 6) | 4.88 | 47.6 | 1.4 | 7.08 | 17.2 | ||||||||
| (7, 7) | 0.20 | 47.1 | 1.2 | 0.26 | 0.7 | ||||||||
| 0.17 | 49.7 | 1.0 | 0.19 | 0.6 | |||||||||
| (9, 9) | 0.35 | 47.4 | 1.5 | 0.52 | 1.0 | ||||||||
Notes. The peak fluxes (Fpeak, Col. 2), the central velocities (Vc; Col. 3), the FWHM line-width (ΔV1/2; Col. 4), and the velocity-integrated flux (Fint; Col. 5) are estimated from single-Gaussian fits to the spectral profiles in Fig. 3. The brightness temperatures Tb are estimated using a beamsize of 0.̋25 (upper limit to the unresolved maser size), and should be regarded as lower limits. The velocities reported here (and throughout the paper) are local standard of rest velocities.
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