\begin{table}%t4 \par \caption {\label{Tab:diagnostics}Binarity and photometric-variability diagnostics for stars from sample~III (as well as binaries or suspected binaries from sample~IV). } %\centerline {\begin{tabular}{rrllccclcllll} \hline\hline \multicolumn{6}{l}{{\bf a. Spectroscopic binaries} (marked as black circles in Figs.~2 and 3)}\\ \hline HD & $N$ & $\Delta t$ & Sp & $\sigma_0(Vr)$ & \multicolumn{1}{c}{$<\!\epsilon\!>$} & ${\it Sb}$ & Flag & Rem. & GCVS$^a$ & Var. & $\sigma(Hp)$ & $P_{\rm phot}$\\ & & (d) & & (\kms) & (\kms) & (\kms) & & & & & (mag) & (d)\\ \hline 83~069 & 9 & 4450 & M2III & 1.63 &0.22 & 2.68 & ORB & & NSV 04545& & 0.015\\ 89~758 & 7 & 6632 & M0III & 3.57 &0.25 & 3.68 & ORB & $^b$ & NSV 04829& SR & 0.019\\ 108~907& 15 & 6821 & M4III &2.57 &0.25 & 3.84 & ORB & & CQ Dra & CV & 0.053 \\%(4 Dra) 111~129& 10 & 3633 & M2III & 6.81&0.23 & 4.20 & ORB & & BY CVn * &Irr & 0.070\\ 113~406& 12 & 4324 & M1III & 2.54&0.23 & 2.94 & ORB & & * & & 0.017 \\ 132~813& 5 & 3639 & M4.5III& 4.93&0.27 & 4.89 & ORB & $^b$ & RR UMi & SR& 0.107 & 43.3\\ 137~853& 11 & 3794 & M1III &1.66 &0.22 & 2.94 & ORB & & * & & 0.014 \\ 159~608& 16 & 3981 & M2III & 7.87 &0.25 & 3.55 & ORB & & * & & 0.018\\ 165~374& 37 & 7349 & M2III &5.03 &0.33 & 3.61 & ORB & & V980 Her *&Irr&0.031 \\ 182~190& 24 & 4197 & M1III & 3.15 &0.22 & 2.88 & ORB & & * & & 0.010\\ 187~372& 16 & 5787 & M1III & 2.42 &0.26 & 3.21 & ORB & & * & & 0.015\\ 199~871& 10 & 3964 & M0III & 7.47 &0.24 & 2.33 & ORB & & & & 0.012\\ 203~525& 10 & 4741 & M0III & 1.68 &0.23 & 0.88 & ORB :& & * & & 0.010\\ 212~009& 9 & 5008 & M0III & 4.72 &0.23 & 3.66 & ORB & & KT Aqr * & & 0.028\\ 212~047& 12 & 3984 & M4III & 7.22 &0.22 & 4.19 & ORB & & PT Aqr & SR& 0.046\\ 220~088& 15 & 4743 & M0III & 1.88 &0.22 & 1.67 & ORB & & * & & 0.010\\ 4301 & 5 & 4607 & M0III & 1.18 & 0.25 & 2.02 & SB %& IV & & * & & 0.015\\ 16~058 & 5 & 4443 & M3III & 3.70 & 0.26 & 3.65 & SB %& IV & & NSV 866 & Lb: & 0.118\\ 104~216& 5 & 3626 & M2III & 1.99 & 0.27 & 3.43 & SB %& IV & & FR Cam & L & 0.064\\ 134~627& 5 & 3922 & M0 & 1.82 & 0.28 & 3.31 & SB %& IV & & FF Boo * & & 0.031\\ 142~804& 5 & 4964 & M1III & 2.64 & 0.27 & 2.68 & SB %& IV & & NSV 7351& Irr & 0.026\\ 219~215& 7 & 4741 & M2III & 0.87 & 0.24 & 1.72 & SB %& III &$^c$ & * & & 0.010\\ \hline \end{tabular}} \par \smallskip \par $^a$ An asterisk in this column means that the variability of the star has been discovered by Hipparcos.\\ $^b$ HD~89~758, HD~132~813: an orbit is also available in the literature, as listed in Table~\ref{Tab:orbits}.\\ $^c$ HD~219~215: Preliminary orbital period: 2500~d.\\ {\begin{tabular}{rrllcclclllll} \hline\hline \multicolumn{6}{l}{{\bf b. Suspected binaries} (marked as black triangles in Figs.~2 and 3)}\\ \hline HD & $N$ & $\Delta t$ & Sp & $\sigma_0(Vr)$ & ${\it Sb}$ & Flag & \multicolumn{2}{c}{Rem.$^a$} & GCVS & Var. &$\sigma(Hp)$& $P_{\rm phot}$\\ & & (d) & & (\kms) & (\kms) & & & & && (mag) & (d)\\ \hline 65~275&9& 4442 & M0 & 0.84 & 3.50 & SB? & III& & & & 0.022 \\ 111~946&9&5040 & M1/2III&1.59 & 3.02 & SB? & III& & VW Crv*& Irr & 0.132 & 45.6:\\ 112~142&5& 4613& M3III & 1.14 & 3.42 & SB? & IV & & $\psi$ Vir&Lb & 0.025\\ 114~961& 5 & 4608 & M7III & 3.50 & 8.60 & SB? & IV & & SW Vir & SRb & 0.198 & 150 \\ 189~063& 8 & 3642 & M0III & 0.80 & 3.16 & SB? & III$^d$& & * & & 0.013\\ \hline \multicolumn{6}{l}{{\bf c. Binarity doubtful} (marked as crosses in Figs.~2 and~3)}\\ 5920 & 8 & 4157 & M4III & 0.77 & 4.83 & SB/jitter? & III & & AK Cet & Lb & 0.061\\ 12~292 & 5 & 4606 & M5III & 1.00 & 4.83 & SB/jitter? & IV & & AR Cet & SR:& 0.054\\ 17~491 & 6 & 4075 & M5III & 1.62 & 6.21 & SB/jitter? & IV & & Z Eri & SRb& 0.157 & 80.0\\ 24~693 & 6 & 4762 & M1III & 0.79 & 3.11 & ORB/jitter? & IV$^b$ & & GO Eri & & 0.035\\ 66~875 & 8 & 4034 & M3III & 1.06 & 4.47 & ORB/jitter? & III$^b$& & BL Cnc & L & 0.062\\ 75~157 & 4 & 3626 & M0 & 1.01 & 3.86 & SB/jitter? & IV & & FW Cnc*& Irr& 0.040 \\ 97~876&9& 4841 & M4III & 1.56 & 4.22 & ORB/jitter? & III& & UU Crt*& SR & 0.115 \\ 129~902& 5 & 4605 & M1III & 0.57 & 1.87 & SB/jitter? & IV$^c$ & & * & & 0.022\\ 149~165& 5 & 5087 & M1III & 0.67 & 1.82 & SB/jitter? & IV$^c$ & & * & & 0.018\\ 153~698& 12 & 4209 & M4III & 0.86 & 4.09 & SB + jitter?&III& & * & & 0.033\\ \hline \multicolumn{6}{c}{{\bf d. Non-SB (radial-velocity jitter)} (marked as open squares in Figs.~2 and 3)}\\ 2411&6 & 4171 & M3III & 1.03 & 4.58 &&&& TV Psc & SR & 0.085 & 49.1\\ 6262 & 9 & 3702 & M3III & 1.04 & 4.51 &&&& V360 And * & SR & 0.066 & \\ 69~229 & 7 & 4819 & M1III & 0.44 & 2.32 & & & & & & 0.018\\ 80~567 & 8 & 3627 & M3 & 1.04 & 5.78 &&&& IN Hya & SRb& 0.129 & 277.8 \\ 107~397& 9 & 3746 & M3III & 1.35 & 5.42 &&&& RY UMa & SRb& 0.284 & 295.7 \\ 112~264& 6 & 3022 & M5III & 1.08 & 6.02 &&&& TU CVn & SRb& 0.077 & 50.0\\ 115~322& 9 & 3627 & M6III & 1.49 & 5.93 &&&& FH Vir & SR & 0.104 & 70.0 \\ 124~304& 9 & 4361 & M3III & 0.90 & 5.05 &&&& EV Vir & SR & 0.154 & 120.0 \\ 125~357& 8 & 4361 & M2/3III & 1.78 & 4.35&&&&MZ Vir & Irr& 0.151 & \\ 166~253& 10 & 3631 & M0 & 1.11 & 3.96 &&&& V566 Her & SRb& 0.091 & 137.0\\ 186~776& 11 & 5981 & M4III & 0.94 & 4.47 &&&& V973 Cyg & SRb& 0.100 & 40.0\\ \hline \end{tabular}} \par \smallskip $^a$ This column specifies whether the binarity suspicion resulted from campaign~III or IV (see Table~\ref{Tab:sample}).\\ $^b$ HD~24~693 and HD~66~875: Orbital solutions with an eccentricity of about~0.5 and periods of $845\pm7$ and $668\pm4$~d, respectively, are possible, but their reality is questionable. The stars are irregular (Lb) variables (varying from $Hp = 7.13$ to~7.26 and 5.94 to~6.11, respectively, in the Hipparcos catalogue) falling right on the dividing line in Fig.~\ref{Fig:Sb-sigma}.\\ $^c$ HD~129~902 and HD~149~165 are probably spectroscopic binaries, given their location in Fig.~\ref{Fig:Sb-sigma} just above the dashed line. Unfortunately, the radial-velocity data presented in Fig.~\ref{Fig:SB?} are too scarce to confirm that conclusion. \\ $^d$ HD~189~063: Orbital period larger than 3600~d. \end{table}