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Table 2.

Physical properties of nearby stars tested for the presence of a PMa.

Name Spectral m1 R ΔvT, G2 θG2 ΔG2 Δ rG2 Bin.
Type (M⊙) (R⊙) (m s−1) (deg) (au) (MJ au−1/2)
Proxima M5.5Ve 0.122 0.003 0.154 0.005 2.7 1.5 3024 1.8 0.74 ⋄
Barnard star M4V 0.160 0.003 0.194 0.006 13.5 6.9 30120 2.0 0.81
Ross 154 M3.5Ve 0.179 0.004 0.210 0.006 3.8 2.8 32527 1.4 0.84 ⋄
eps Eri K2V 0.847 0.042 0.702 0.035 5.7 13.1 32148 0.4 1.42 ⋄
HD 217987 M2V 0.473 0.036 0.462 0.034 2.9 2.0 8032 1.4 1.17
Ross 128 M4V 0.178 0.004 0.210 0.006 7.3 3.2 11917 2.3 ° 0.84
61 Cyg B K7V 0.657 0.057 0.644 0.067 89.9 2.6 3301 34.0 ⋆ 1.30 ⋄
61 Cyg A K5V 0.708 0.053 0.702 0.068 82.1 7.8 1524 10.5 ⋆ 1.33 ⋄
HD 173739 M3V 0.340 0.007 0.347 0.010 50.8 5.5 1884 9.2 ⋆ 1.04 ‡⋄
HD 173740 M3.5V 0.261 0.006 0.281 0.008 64.2 9.4 115 6.8 ⋆ 0.95 ‡⋄
GJ 15 A M2V 0.409 0.008 0.406 0.012 23.5 1.7 673 14.0 ⋆ 1.11 ⋄
tau Cet G8V 0.900 0.045 0.751 0.038 132 28 2757 4.7 • 1.44 ⋄
eps Ind K5V 0.778 0.039 0.707 0.035 44.0 10.5 5610 4.2 • 1.38 ⋄
YZ Cet M4.0Ve 0.135 0.003 0.169 0.005 9.1 6.2 8828 1.5 0.77
HIP 24186 M1VIp 0.286 0.006 0.302 0.009 3.2 1.9 14522 1.7 0.98
AX Mic M1V 0.609 0.042 0.592 0.046 9.8 2.9 5812 3.4 • 1.27
Ross 614 M4.5V 0.242 0.005 0.265 0.008 2573 47 1691 55.1 ⋆ 0.93 ⋄
BD-12 4523 M3V 0.310 0.007 0.322 0.010 4.1 3.8 9234 1.1 1.01 ⋄
Wolf 28 DZ7.5 0.680 0.020 0.011 0.000 11.0 4.8 16015 2.3 ° 1.31
HD 225213 M2V 0.397 0.008 0.396 0.012 4.1 4.4 17722 0.9 1.10
CD-46 11540 M3V 0.360 0.007 0.365 0.011 3.3 3.3 35128 1.0 1.06
BD+68 946 M3.0V 0.410 0.008 0.407 0.012 8.9 2.9 3513 3.1 • 1.11 ⋄
LAWD 37 DQ 0.610 0.010 0.015 0.000 14.1 2.8 3068 5.0 • 1.27
BD-15 6290 M3.5V 0.346 0.007 0.352 0.011 4.0 4.2 15234 0.9 1.05
HD 88230 K6VeFe-1 0.709 0.049 0.703 0.062 4.6 2.3 515 2.0 ° 1.33 ⋄ ⋄
HD 204961 M2/3V 0.449 0.009 0.441 0.013 12.5 2.9 15310 4.2 • 1.15
CD-44 11909 M3.5 0.281 0.006 0.298 0.009 8.8 6.5 24629 1.4 0.98 ⋄
omi02 Eri K0V 0.900 0.045 0.788 0.039 8.5 14.9 4543 0.6 1.44 ⋄
EV Lac M4.0V 0.328 0.007 0.337 0.010 1.9 3.2 23542 0.6 1.03 ⋄
G 254-29 M4.0Ve 0.250 0.006 0.272 0.008 2.3 4.1 27247 0.6 0.94
HD 42581 M1V 0.563 0.042 0.547 0.044 112.7 5.7 1732 19.7 ⋆ 1.24 ⋄
e Eri G6V 0.980 0.049 0.838 0.042 111 25 3438 4.5 • 1.49
TW PsA K4Ve 0.757 0.038 0.743 0.037 18.7 6.4 28213 2.9 ° 1.36
HD 103095 K1V-Fe-1.5 0.703 0.013 0.696 0.021 1.0 5.0 10748 0.2 • 1.33
51 Peg G2IV 1.158 0.058 1.183 0.059 65 22 34911 3.0 • 1.57 ⋄
tau Boo F6IV+M2 1.400 0.070 1.307 0.065 779 72 504 10.9 ⋆ 1.67 ⋄
bet Pic A6V 1.700 0.085 1.459 0.073 249 98 24117 2.5 • 1.78

Notes. The stars are listed in order of decreasing parallax, and the names of the stars discussed in Sect. 5 are emphasized using bold characters. ΔvT, G2 is the norm of the tangential velocity anomaly, θG2 is the position angle of the observed PMa vector, and is the mass of a companion explaining the PMa, normalized at an orbiting radius of r = 1 au. ΔG2 is the S/N of the PMa, Δ represents the detection level (° for 2 <  ΔG2 <  3, • for 3 <  ΔG2 <  5 and ⋆ for ΔG2 >  5). rG2 is the radius of a circular orbit whose period is equal to δtG2 = 668 days. The stars present in the Washington Double Star catalog (Mason et al. 2001) are marked with a ⋄ symbol in the “Bin.” column, and those present in the Double and Multiple Star Annex (DMSA) of the original HIPPARCOS catalog (ESA 1997) are marked with a ‡ symbol. The table for the full HIPPARCOS catalog is available from the CDS.

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