Table 3.
Parameters of the 22 GHz H2O maser features detected in IC 485.
| Maser | RA | Dec | Gaussian | Peak flux | FWHM | Velocity-integrated | Peak velocity | Liso | |
|---|---|---|---|---|---|---|---|---|---|
| component | feature | density | flux density | ||||||
| (h : m : s) | (° : ′: ″) | (mJy) | (km s−1) | (mJy km s−1) | (km s−1) | (L⊙) | |||
| 2018.16 | M1 | 08:00:19.752530 | +26:42:05.0523 | 1 | 22 ± 1 | 4.1 ± 0.2 | 97 ± 4 | 8344.98 ± 0.08 | |
| 2 | 33.7 ± 0.5 | 38.3 ± 0.4 | 1372 ± 15 | 8352.9 ± 0.2 | 526 ± 57 (a) | ||||
| 3 | 30 ± 2 | 5.3 ± 0.2 | 167 ± 6 | 8359.79 ± 0.07 | |||||
| 2018.83 | |||||||||
| M1* | 08:00:19.752516 | +26:42:05.0525 | 1 | 19.7 ± 0.9 | 35 ± 1 | 742 ± 21 | 8354.8 ± 0.5 | 239 ± 28 | |
| M2 | 08:00:19.752516 | +26:42:05.0528 | 1 | 4 ± 1 | 18 ± 7 | 76 ± 20 | 8827.0 ± 1.0 | 24 ± 16 | |
Notes. The first block summarises the parameters of the maser component of epoch 2018.16, the second one those relating to epoch 2018.83 (both observed with VLBA). The columns indicate the name of the maser component, right ascension and declination obtained with the task JMFIT in AIPS, peak flux density, the FWHM, the area (i.e., the velocity-integrated flux density), and the peak velocity obtained from a Gaussian fit performed in CLASS. The isotropic luminosity derives from 
where S is the peak flux, dV is FWHM, and D = (122.0 ± 8.5) Mpc, assuming H0 = 70 km s−1 Mpc−1 (Kamali et al. 2017).
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