Table 1
Comprehensive properties of high-velocity BSSs and representative core members in NGC 188.
| Source ID (Gaia DR3) | RA (deg) | Dec (deg) | G0 (mag) | (BP − RP)0 (mag) | vrel (km s−1) | cos θ (Radial) | Tej (Myr) | rorigin (pc) | RUWE | NSS Flag | IPD Frac | Seq. Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dynamically ejected halo candidates | ||||||||||||
| 573778429264792832 | 16.8356 | 85.3144 | 14.96 | 0.79 | 8.9 | 0.99 | 1.5 ± 0.1 | 0.44 | 1.04 | 0 | 0.00 | Red |
| 573973111543073024 | 13.6312 | 85.5359 | 14.77 | 0.72 | 5.9 | 0.98 | 1.5 ± 0.1 | 0.82 | 1.00 | 0 | 0.00 | Red |
| Representative core BSS population | ||||||||||||
| 573968576057423360 | 11.0892 | 85.4417 | 13.26 | 0.45 | . . . | . . . | . . . | . . . | 1.40 | 0 | 0.00 | Red |
| 573938408207239296 | 12.0834 | 85.2242 | 14.11 | 0.41 | . . . | . . . | . . . | . . . | 1.01 | 0 | 0.00 | Blue |
| 573941294425258496 | 11.8000 | 85.2254 | 14.36 | 0.79 | . . . | . . . | . . . | . . . | 0.96 | 0 | 0.00 | Red |
Notes. G0 and (GBP − GRP)0 are corrected for differential reddening. vrel and cos θ (alignment with the radial vector) are calculated in the cluster rest frame. Tej (ejection age) and rorigin (minimum distance to core) are derived from orbit back-integration using a 2180 M⊙ Plummer potential. RUWE, NSS flag, and IPD Frac (ipd_frac_multi_peak) are astrometric quality and multiplicity indicators from Gaia DR3. he BSS population statistics (N = 45) show that the red sequence comprises 88.9% (MT-origin) and the blue sequence comprises 11.1% (collision-origin).
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.