Table 7
Dates of observations with the main and ACA arrays and associated optical phases (in parentheses) of the variable 268.149 GHz H2O sources.
| Star | Pulsation period(a) (days) | Date and optical phase | Date and optical phase ACA(b) | ||
|---|---|---|---|---|---|
| Mid config. array(b) | Extended config. array(b) | Mid/Ext peak flux ratio(c) | |||
| U Her | 402 | 2018 10 14 (0.13) | 2019 07 06 (0.80) | 34 | – |
| 2019 08 24 (0.92) | |||||
| GY Aql | 468 | 2018 11 13 (0.65) | 2019 07 08 (0.15) | 1.7 | 2021 09 14 (0.80) |
| AH Sco | 738 | 2018 11 22 (0.32) | 2019 07 08 (0.73) | 0.1 | – |
| VX Sgr | 790 | 2018 11 22 (0.20) | 2019 07 09 (0.45) | 20 | – |
| RW Sco | 389 | 2018 11 22 (0.65) | 2019 07 06 (0.20) | 1 | – |
| R Aql | 268 | 2018 11 18 (0.38) | 2019 07 06 (0.22) | 0.6 | 2021 09 13 (0.20) |
| 2018 11 19 (0.38) | |||||
Notes. (a)Pulsation period from Gottlieb et al. (2022) except for VX Sgr for which the period estimated from the AAVSO (https://www.aavso.org) light curve data is preferred. (b)Date in year-month-day format and optical phase given in parentheses. Optical phase uncertainty can be ∼0.1 (as suggested from uncertain maxima or minima in AAVSO light curves). (c)Ratio of the mid array peak flux density to the extended array peak flux density at the dates given in the third and fourth columns for spectra extracted with 0.″4 aperture diameter. See also spectra in Figs. 12, 13 and 15.
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.