Table 4
Fitted visual light and mid-IR light curves.
| Visual (AAVSO+ASAS) | Mid-IR (MIDI) | ||||||
| Target | P | T 0 | V 0 | V ampl | Δφ | N 0 | N ampl |
| days | JD | mag | mag | Jy | Jy | ||
|
|
|||||||
| R Aql | 271 ± 4 | 2 452 910 | 8.30 | 1.80 ± 0.15 | −0.21 ± 0.50 | 377 ± 50 | 80 ± 50 (21%) |
| R Aqr | 390 ± 5 | 2 452 480 | 8.75 | 2.75 ± 0.20 | +0.15 ± 0.05 | 1080 ± 100 | 330 ± 50 (31%) |
| R Hya | 374 ± 5 | 2 453 231 | 6.95 | 1.95 ± 0.15 | +0.08 ± 0.05 | 1930 ± 200 | 240 ± 50 (12%) |
| W Hya | 388 ± 5 | 2 452 922 | 7.56 | 1.41 ± 0.10 | +0.15 ± 0.05 | 4910 ± 200 | 510 ± 100 (10%) |
| V Hyaa | 529 ± 10 | 2 450 045 | 8.50 | 1.50 ± 0.10 | +0.29 ± 0.05 | 1330 ± 200 | 580 ± 200 (44%) |
Notes. V(t) = Vamplsin [ 2π(t − T0)/P] + V0 and N(t) = Namplsin [ 2π(t − T0)/P − Δφ] + N0, respectively. The phase shift Δφ gives the positive offset in respect to the visual phase.
V Hya has a second period with P2 = (6160 ± 400) days, T0,2 = 2446937 days, V0,2 = 8.50 mag and Vampl,2 = (3.50 ± 0.50) mag (Knapp et al. 1999).
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