Table 1.
Description of the Gaia DR2-based catalogue of 237 strongly magnetic Ap stars with resolved magnetically split lines.
Bytes | Format | Units | Label | Explanations | Ref |
---|---|---|---|---|---|
001-024 | A24 | – | Object name | (SIMBAD) name of Ap star, typically HD...or 2MASS... | 1, 2 |
026-053 | A28 | – | DR2NAME | Unique Gaia source designation | 3 |
055-064 | F10.4 | mas | Plx | Gaia DR2 parallax | 3 |
066-072 | F6.4 | mas | e_Plx | Error of Gaia DR2 parallax | 3 |
074-083 | F10.4 | – | RPlx | Gaia DR2 parallax divided by its error | 3 |
085-093 | F9.3 | mas yr−1 | pmRA | Gaia DR2 proper motion component in right ascension direction (μα cos δ) | 3 |
095-100 | F5.3 | mas yr−1 | e_pmRA | Error of pmRA | 3 |
102-110 | F9.3 | mas yr−1 | pmDE | Gaia DR2 proper motion component in declination direction (μδ) | 3 |
112-117 | F5.3 | mas yr−1 | e_pmDE | Error of pmDE | 3 |
119-120 | I2 | – | Np | Gaia DR2 Nper = visibility_periods_used | 3 |
122-128 | F7.4 | mag | G | Gaia DR2 G magnitude | 3 |
130-136 | F7.4 | mag | BP | Gaia DR2 BP magnitude | 3 |
138-144 | f7.4 | mag | BP − RP | Gaia DR2 BP − RP colour | 3 |
146-153 | F8.4 | – | u | Gaia DR2 astrometric unit weight error | 3, 4, 11 |
155-162 | F8.3 | – | RUWE | Renormalised unit weight error (newly calibrated u) | 3, 4, 5, 11 |
164-169 | F6.4 | – | va_G | Variability amplitude in Gaia DR2 G band | 3, 6, 7, 11 |
171-176 | F6.4 | – | va_B | Variability amplitude in Gaia DR2 BP band | 3, 11 |
178-183 | F6.4 | – | va_R | Variability amplitude in Gaia DR2 RP band | 3, 11 |
185-190 | f6.2 | – | vaGs | Significance of va_G (number of standard deviations σ above the typical level of non-variable stars) | 3, 11 |
192-197 | f6.2 | – | vaBs | Significance of va_B (number of standard deviations σ above the typical level of non-variable stars) | 3, 11 |
199-204 | f6.2 | – | vaRs | Significance of va_R (number of standard deviations σ above the typical level of non-variable stars) | 3, 11 |
206-212 | F7.2 | K | Teff | Stellar effective temperature | 3, 8 |
214-220 | F7.2 | K | b_Teff | Uncertainty (lower) on Teff estimate | 3, 8 |
222-228 | F7.2 | K | B_Teff | Uncertainty (upper) on Teff estimate | 3, 8 |
230-238 | F9.3 | Solar Lum | Lum | Estimated luminosity | 3, 8 |
240-246 | f7.4 | mag | MG | Absolute G magnitude computed as MG = G + 5log(Plx/100) | 3, 11 |
248-249 | I2 | – | wf | Wide binary (common parallax and proper motion = CPPM) flag (number of CPPM companions) | 3, 11 |
251-252 | I2 | – | bf | Close (with respect to Gaia measurements) binary flag (0 = not known as binary) | 1 |
254-255 | I2 | – | cf | Cluster membership flag (number of clusters of which the star is a member) | 3, 9, 11 |
257-258 | I2 | – | af | Astrometric quality flag (number of criteria by which star was excluded, 0 = best, 4 = worst) | 3, 5, 11 |
260-261 | I2 | – | vf | Variability flag (number of photometric bands, where the star lies > 3σ above the typical variability amplitude) | 3, 11 |
263-268 | I6 | – | Hip | HIPPARCOS identifier | 10 |
270-270 | A1 | – | N | Note in first version of HIPPARCOS catalogue, here: P = note on photometry | 10 |
274-275 | I2 | – | Sn | Solution type new reduction, 5 = 5-parameter, 7 = 7-parameter solution, > 9 = double star with peculiarities | 10 |
277-278 | I2 | – | So | Solution type old reduction, 0 = 5-parameter, 1 = 7- or 9-parameter, 3 = double/multiple stars, 4 = orbital binary | 10 |
280-281 | I2 | – | Nc | Number of components according to HIPPARCOS | 10 |
286-290 | F5.2 | mas | HPlx | HIPPARCOS parallax (new reduction) | 10 |
293-297 | F5.2 | mas | eHPlx | Error of HIPPARCOS parallax (new reduction) | 10 |
299-302 | I4 | – | Ntr | Number of HIPPARCOS field transits used | 10 |
304-309 | f6.2 | – | F2 | HIPPARCOS goodness of fit | 10 |
311-313 | I3 | – | F1 | Percentage of rejected HIPPARCOS data | 10 |
316-322 | F7.4 | mag | HPmag | HIPPARCOS magnitude (in the optical V band of the HIPPARCOS photometric system) | 10 |
324-330 | f7.3 | mag | B − V | HIPPARCOSB − V colour index (in the non-conventional system) | 10 |
332-338 | f7.3 | mag | V − I | HIPPARCOSV − I colour index (no standard system specified) | 10 |
References.
(1) Mathys (2017); (2) Chojnowski et al. (2019); (3) Gaia Collaboration (2018b); (4) Lindegren et al. (2018); (5) Lindegren (2018); (6) Deason et al. (2017); (7) Vioque et al. (2018); (8) Andrae et al. (2018); (9) Cantat-Gaudin et al. (2018); (10) van Leeuwen (2007); (11) this paper.
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.