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Table 3:

TW Hydrae association.

Name 		ID $_{\rm ASAS}$ P $\Delta P$ Timeseries $\Delta V_{\rm max}$ $\sigma_{\rm acc}$ $V_{\min}$ B - V Sp.T. Mult. Note Variable's
    (d) (d) sections (mag) (mag) (mag) (mag)       name
TW Hya 110152-3442.3 2.80 0.04 ... 0.25 0.031 11.00 0.97 K6Ve S $P_{\rm lit}$  
TWA 2 110914-3001.7 4.86 0.02 13/16 0.18 0.031 11.10 1.48 M2Ve V new  
TWA 3A 111028-3731.9 ... ... ... ... ... 12.10 1.47 M4Ve V ...  
TWA 3B no-ASAS .. ... ... ... ... 13.07 1.52 M4Ve V ...  
TWA 4A 112205-2446.7 2.52 0.20 ... 0.09 ... 8.94 1.17 K5V Q $P_{\rm lit}$ TV Crt
TWA 4B 112205-2446.7 14.8 0.3 9/14 0.09 0.032 8.92 1.17 K5V Q new  
TWA 5 113155-3436.5 0.776 0.001 2/15 0.22 0.031 11.56 1.47 M2Ve T $P=P_{\rm ACVS}$  
TWA 6a 101829-3150.0 0.54 ... ... 0.49 ... 10.88 1.31 M0Ve S $P_{\rm lit}$  
TWA 7 104230-3340.3 5.00b 0.03 1/15 0.11 0.030 11.73 1.46 M2Ve S $P=P_{\rm lit}$  
TWA 8A 113241-2651.9 4.66 0.06 4/14 0.27 0.029 12.14 1.46 M3Ve V $P=P_{\rm lit}$  
TWA 8B no-ASAS 0.78 ... ... 0.08 ... 15.20 1.10 M5 V $P_{\rm lit}$  
TWA 9A 114824-3728.8 5.01 0.01 13/14 0.18 0.027 11.22 1.26 K5V V $P\ne P_{\rm ACVS}$; $P=P_{\rm lit}$  
TWA 9B no-ASAS 3.980 ... ... 0.08 ... 14.00 1.43 M1V V $P_{\rm lit}$  
TWA 10 123504-4136.6 8.4 0.1 2/14 0.33 0.027 13.04 1.43 M2Ve S $P=P_{\rm lit}$  
TWA 12a 112105-3845.3 3.30 0.01 7/14 0.45 0.030 12.70 1.53 M1Ve S $P=P_{\rm ACVS}=P_{\rm lit}$  
TWA 13A 112117-3446.8 5.56 0.03 8/15 0.20 0.031 11.09 1.42 M1Ve V =1/2 $P_{\rm ACVS}$; $P=P_{\rm lit}$  
TWA 13B 112117-3446.8 5.35 0.03 4/12. 0.27 0.031. 11.96 1.47 M5 V $P=P_{\rm lit}$  
TWA 14a 111326-4523.7 0.63 ... ... 0.11 ... 12.52 1.301 M0 S $P_{\rm lit}$  
TWA 15Aa 123421-4815.2 0.65 ... ... 0.13 ... ... 1.451 M2 V $P_{\rm lit}$  
TWA 15Ba 123420-4815.3 0.72 ... ... 0.05 ... ... 1.451 M2 V $P_{\rm lit}$  
TWA 16a 123456-4538.1 ... ... ... ... ... 12.69   M1.5 B ...  
TWA 17a 132045-4611.6 0.69 ... ... 0.12 ... ... 1.201 K5 S P $_{\rm lit}$  
TWA 18a 132137-4421.9 1.11 ... ... 0.08 0.030 13.12 1.301 M0.5 S P $_{\rm lit}$  
TWA 19ABa 114721-4953.1 ... ... ... ... ... ... ... K7 V ...  
TWA 20 123138-4559.0 ... ... ... ... ... 13.42 1.10 M2 S ...  
TWA 21a 101315-5230.9 4.43 0.02 7/15 0.13 0.037 9.82 1.00 K3Ve V new  
TWA 23e 120727-3247.0 ... ... ... ... ... 12.81 1.351 M1 S ...  
TWA 24a 120942-5854.8 0.680b 0.004 6/12 0.08 0.030 10.28 0.94 K1Ve S new  
TWA 25 121531-3948.7 5.07 0.02 12/14 0.23 0.032 11.37 1.41 M1Ve S $P=P_{\rm ACVS}$  

Notes. V = visual companion; S = single star; B = binary system; T = triple system; Q = quadruple system; $P_{\rm lit}$: period as given in the literature; $P_{\rm ACVS}$: period in ACVS; (a) rejected member and excluded from rotation period distribution; (b) period undetected in the periodogram of the complete time series; (e) not included in the member list because of incomplete kinematic information; (1) inferred from spectral type. Summary of period searches: Star's name; ASAS number; rotation period and its uncertainty; fraction of timeseries sections in which the rotation period is detected with confidence level higher than 99%; maximum light curve amplitude ( $\Delta V_{\rm max}$); photometric accuracy ( $\sigma_{\rm acc}$); brightest V magnitude ($V_{\min}$); B - V colour; spectral type and note on binarity; note on period, and variable star designation if it exists. Targets are listed according to increasing TWA number (and increasing ASAS number for the other associations).


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