Table 1.
Observations log, radial velocities and stellar parameters for VX Sgr.
| Date | BJD | Instrument | texp | RV | Teff | ζ | SpT |
Remark | |
|---|---|---|---|---|---|---|---|---|---|
| [s] | [km s−1] | [K] | [km s−1] | Optical | Near-infrared | ||||
| 2016-04-04 | 2457482 | SES | 3600 | −4.3 ± 0.2 | 3408 ± 37 | 4.19 ± 0.36 | M7 | M8 | Rb double lined |
| 2016-05-21 | 2457529 | SES | 3600 | −4.5 ± 0.2 | 3360 ± 32 | 4.72 ± 0.54 | M8 | M8.5 | Rb double lined |
| 2016-09-22 | 2457653 | SES | 6000 | −5.0 ± 0.4 | 3523 ± 25 | 6.87 ± 0.32 | M5.5 | M7 | H in emission |
| 2016-10-25 | 2457686 | UVES | 10.5 | −4.9 ± 0.2 | 3471 ± 13 | 9.19 ± 0.86 | M4.5 | M7 | – |
| 2017-02-12 | 2457796 | UVES | 2.5 | −5.2 ± 0.1 | 3318 ± 10 | 10.18 ± 0.80 | M5.5 | M7.5 | – |
| 2017-03-04 | 2457816 | UVES | 8.5 | −5.2 ± 0.1 | 3261 ± 68 | 10.36 ± 0.90 | M5.5 | M7.5 | – |
| 2017-04-02 | 2457845 | SES | 3000 | −4.7 ± 0.2 | 3347 ± 24 | 6.54 ± 0.55 | M6 | M8 | – |
| 2017-05-17 | 2457890 | SES | 3000 | −4.3 ± 0.2 | 3273 ± 29 | 6.26 ± 0.50 | M6 | M8 | – |
| 2017-06-29 | 2457933 | SES | 3000 | −4.1 ± 0.2 | 3294 ± 37 | 6.49 ± 0.56 | M6.5 | M8 | – |
| 2017-08-06 | 2457971 | SES | 6000 | −3.6 ± 0.2 | 3272 ± 36 | 5.36 ± 0.75 | M7 | M8.5 | – |
| 2018-06-06 | 2458275 | SES | 3000 | −3.3 ± 0.3 | 3562 ± 19 | 6.24 ± 0.38 | M3 | M4 | H in emission; doubled atomic lines |
Notes. The table lists: epochs of observation, instrument used to acquire each observation, total exposure times for each epoch (texp), radial velocities (RV), Specral types (SpT), and physical parameters for VX Sgr (Teff, ζ). log g is fixed to −0.5 dex whereas [M/H] is also fixed to 0.0 dex (see text for details). The accuracy of the spectral classification is one subtype.
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.