Table 3: The results for $\lambda $ Bootis stars taken from Paunzen et al. (2002) according to Fig. 1 and Table 2. We would only consider the stars of group (5) as good candidates for undetected spectroscopic binary systems, and no conclusion can be drawn for group (6).
(1) (2) ( 3 ) (4) (5) ( 6 ) a.
6870 319 31295 111604 23392 13755  P
11413 7908 35242 156954 110377 15165  P
24472 30422 101108 193256 170680 54272  P
75654 74873   193281 198160 87271  P
81290 91130       90821  F
83041 110411       105759  P
83277 125162       111005  P
84123 130767       120500  F
102541 183324       120896  P
105058 204041       175445  F
106223 221756        
107233          
109738          
125889          
142703          
142994          
149130          
153747          
154153          
168740          
168947          
184779          
192640          
210111          
216847          
44% 19% 5% 7% 7% 18%
a. Passed (intrinsic $\lambda $ Bootis ) or Failed (undetected binary system); The last row contains the percentage of objects as part of the total sample.

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