Table A.5: All wTTS in the comparison sample. They have been known prior to the ROSAT All-Sky Survey. The table lists the rotational period together with the classification of the object. All objects are weak-line TTS, wb stands for binarity, wt for triple system, wsb is a double-lined spectroscopic binary. The last column states if the object was detected with the Einstein observatory (marked with X) and is therefore X-ray selected like the stars found by ROSAT.
Name of the object Type Period P Source EO
L1551-51 w 1.21 1 X
LkCa 4 w 3.37 1, 4  
NTTS 043124+1824 w 3.32 4 X
HD 283572 w 1.55 3 X
IP Tau w 3.25 1  
L1551-55 w 6.20 4 X
LkCa 14 w 3.35 3  
LkCa 19 w 2.24 1, 4  
LkCa 3 w 7.20 3  
NTTS 034903+2431 w 1.60 1 X
NTTS 041559+1716 w 2.58 3 X
NTTS 042417+1744 w 2.70 4 X
NTTS 042835+1700 w 3.38 1 X
NTTS 043220+1815 w 3.20 4 X
V827 Tau w 3.75 5 X
V830 Tau w 2.75 5 X
V836 Tau w 7.00 6 X
DI Tau wb 7.50 1  
VY Tau wb 5.37 7  
IW Tau wb 5.60 1  
LkCa 7 wb 5.64 1  
V410 Tau wb 1.8714 8  
V819 Tau wb 5.60 6 X
V826 Tau wb 3.70 5 X
NTTS 045251+3016 wsb 4.70 1 X
CoKu HP Tau/G2 wt 1.20 2  
HP Tau wt 5.90 3  
UX Tau A wt 2.70 5  
Sources: (1) Bouvier et al. (1993b); (2) Vrba et al. (1989); (3) Bouvier et al. (1995); (4) Grankin (1993); (5) Bouvier et al. (1986); (6) Rydgren et al. (1984); (7) Grankin et al. (1991); (8) Herbst (1989).

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