Table 1
Stellar sample and observation dates.
| Star | Variability | RA | Dec | Distance (error)a | Mass-loss rateb | Obs. date | Precipitable water |
| Spectral type | J2000 (h m s) | J2000 (°′′′) | (pc) | (M⊙ yr-1) | (2016) | (mm) | |
|
|
|||||||
| o Ceti | Mira | 02 19 20.79 | −02 58 39.5 | 92 (+11/−10) | 2.5 × 10-7 | 26 July | 0.4−0.5 |
| M5−M9 | |||||||
| R Horc | Mira | 02 53 52.72 | −49 53 22.7 | 210 (+54/−36) | 9 April | 0.7−0.8 | |
| M5−M8 | |||||||
| RT Eric | Mira | 03 34 12.48 | −16 09 50.7 | 505 (+1800/−220) | 15 June | 0.5−0.65 | |
| M7 | |||||||
| IK Tau | Mira | 03 53 28.87 | +11 24 21.7 | 250−265 | 5 × 10-6 | 28 July | 0.65 |
| M6−M10 | |||||||
| VY CMa | RSG | 07 22 58.32 | −25 46 03.2 | 1200 (+130/−100) | 1.8 × 10-4 | 15 June | 0.5−0.65 |
| M5 | |||||||
| RT Virc | SRb | 13 02 37.98 | +05 11 08.4 | 136 (+17/−14) | 1.3 × 10-7 | 28 July | 0.8 |
| M8 | |||||||
| R Hya | Mira | 13 29 42.78 | −23 16 52.8 | 124 (+12/−10) | 28 July | 0.8 | |
| M6−M9 | |||||||
| W Hya | Mira/SRa | 13 49 02.00 | −28 22 03.05 | 98 (+30/−18) | 1.4 × 10-7 | 28 July | 0.8 |
| M7−M9 | |||||||
| RU Hyac | Mira | 14 11 34.40 | −28 53 07.4 | – | 28 July | 0.75 | |
| M6−M9 | |||||||
| AH Scoc | SRc/RSG | 17 11 17.02 | −32 19 30.7 | 2260 (+190/−190) | 9 April | 0.45−0.5 | |
| M4−M5 | |||||||
| X Pavc | SRb | 20 11 45.86 | −59 56 12.8 | 671 (+2100/−382) | 26 July | 0.4−0.5 | |
| M6−M7 | |||||||
Notes.
Distances to o Ceti, R Hor, RT Eri, RT Vir, R Hya, and X Pav are from Hipparcos validated reduction (van Leeuwen 2007). The distance range for these stars is derived from the parallax uncertainty given in Hipparcos. The parallax uncertainty is large for RT Eri and X Pav, hence the large distance uncertainty. For RU Hya the uncertainty is larger than the estimated parallax and we do not give a distance entry. The distances to VY CMa (Zhang et al. 2012), W Hya (Vlemmings et al. 2003) and AH Sco (Chen & Shen 2008) are taken from VLBI observations. For IK Tau we give the range 250 to 265 pc from Olofsson et al. (1998) and Hale et al. (1997), respectively.
If known, mass-loss rates are taken from the literature. M⊙ yr-1 is from De Beck et al. (2010) for VY CMa and W Hya, and Kim et al. (2010a) for IK Tau.
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.