Table 1
Ten of the 38 identified targets for the kernel-nuller discovery observing program, derived from the proper motion anomaly (PMa, Kervella et al. 2022) catalogue of HIPPARCOS and Gaia EDR3 astrometry.
| HIP | R | K | SpT | ϖ | ΔvT,G3 | m* | R* | mP | Sep. | log(c) | Assoc. | Age |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (mag) | (mag) | (mas) | (m s−1) | (M⊙) | (R⊙) | (MJup) | (mas) | (Myr) | ||||
| 1481 | 7.13 | 6.15 | F8V | 23.35 | 22.13 | 1.16 | 1.12 | 2.55 | 116.78 | −6.78 | THA | 45 |
| 14157 | 7.92 | 6.55 | K0V | 19.45 | 69.06 | 0.94 | 1.24 | 7.12 | 97.23 | −6.87 | CARN | 200 |
| 16544 | 8.30 | 7.09 | G2V | 19.13 | 43.98 | 1 | 0.94 | 4.75 | 95.67 | −5.77 | BPMG | 24 |
| 17338 | 8.69 | 7.20 | G8V | 17.57 | 50.75 | 1 | 1.03 | 5.48 | 87.87 | −5.99 | OCT | 35 |
| 30034 | 8.60 | 6.98 | K1V | 19.94 | 65.45 | 0.86 | 1.04 | 6.13 | 99.73 | −5.99 | CAR | 45 |
| 30314 | 6.15 | 5.04 | G1V | 41.89 | 12.52 | 1.08 | 1.07 | 1.40 | 209.44 | −7.32 | ABDMG | 149 |
| 50032 | 8.58 | 7.06 | K2V | 24.33 | 27.26 | 0.90 | 0.8 | 2.69 | 121.65 | −5.49 | UCL | 16 |
| 53837 | 7.16 | 6.05 | G2V | 30.03 | 15.46 | 1.08 | 0.95 | 1.73 | 150.16 | −6.14 | LCC | 15 |
| 78264 | 8.19 | 7.21 | F7V | 14.43 | 50.50 | 1.16 | 1.1 | 5.82 | 72.16 | −5.83 | UCL | 16 |
| 81295 | 9.35 | 8.24 | G3/5V | 11.09 | 101.70 | 1.06 | 0.94 | 11.29 | 55.47 | −4.89 | UCL | 16 |
Notes. The table includes the stellar R and K magnitudes, spectral type, parallax (ϖ), ΔvT,G3, which is the norm of the tangential PMa vector converted to linear velocity using the Gaia EDR3 parallax, m*, the mass of the primary star, R* the stellar radius, and mP the mass of a companion assuming a 5 AU orbit. The angular separation estimate is given by the ratio between the semi-major axis (assumed to be 5 AU) and the distance to the system. The estimated contrast c of the companion is given as log(c). The full names of the young stellar associations listed are AB Doradus (ABDMG), β Pictoris (βPMG), Carina (CAR), Carina-Near (CARN), Lower Centaurus Crux (LCC), Octans (OCT), Tucana-Horologium Association (THA), and Upper Centaurus Lupus (UCL). The ages of the young associations are from Gagné et al. (2018).
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