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Table 2

ϵ Cha association and η Cha cluster: summary of period searches.

Name IDASAS P ΔP Timeseries Qual. ΔVmax σacc Vmin B − V Sp.T. Note Variable’s
(d) (d) sections flag (mag) (mag) (mag) (mag) name
ϵ Chamaeleontis
CP-68 1388 105749-6914.0 3.560 0.030 12(13)/15 C 0.25 0.03 10.38 0.86Av K1V(e) new
GSC 9419-01065 114932-7851.0 8.000c 0.100 4(10)/12 U 0.37 0.03 12.61 1.27Av M0Ve new DZ Cha
HIP 58285 115715-7921.5 ... ... ... ... ... ... 12.0 0.93d K0e ... T Cha
HIP 58490 115942-7601.4 8.000 0.100 7(11)/13 C 0.20 0.03 11.02 1.11Av K4Ve new
HD 104237E 120005-7811.6 2.45 ... 1/1 U ... ... 12.08 1.11d K4Ve B; Plit
HD 104467 120139-7859.3 4.430 0.040 4(8)/13 L 0.05 0.03 8.45 0.63Av G3V(e) new
GSC 9420-0948 120204-7853.1 4.450 0.040 11(13)/13 C 0.48 0.03 12.30 1.00Av M0e new
GSC 9416-1029 120437-7731.6 5.350 ... 1/1 U ... ... 13.81 1.30Av M2e SB2; Plit
HD 105923 121138-7110.6 5.050 0.050 11(13)/14 C 0.07 0.03 9.07 0.73Av G8V new
GSC 9239-1495 121944-7403.9 ... ... ... ... ... ... 12.54 1.28Av M0e ...
GSC 9239-1572 122023-7407.7 1.536 0.002 9(8)/9 C 0.30 0.03 12.85 0.97Av M1V V; new
CD-74 712 123921-7502.7 3.970 0.030 23(24)/25 C 0.13 0.03 10.22 0.97 K3Ve new
GSC 9235-1702 122105-7116.9 6.85 0.05 9(14)/14 C 0.25 0.02 11.62 1.20d K7V P = Plit
CD-69 1055 125826-7028.8 2.007 0.007 8(13)/15 C 0.10 0.03 9.91 0.83Av K0Ve new
TYC 9246-971-1 132208-6938.2 3.750 0.030 9(14)/15 C 0.13 0.03 10.31 0.86Av K1Ve new MP Mus
η Chamaeleontis cluster
RECX 1 083656-7856.8 4.50 0.040 12(12)/15 C 0.13 0.03 10.36 1.19 K4V V; P = 2Plit EG Cha
RECX 3a 084136-7903.7 3.57 ... 2/2 U 0.08 ... 14.30 ... M3 Plit EH Cha
RECX 4 084229-7903.9 7.1 0.4 6(10)/12 C 0.25 0.03 12.73 ... K7 P = Plit EI Cha
RECX 5 084235-7858.1 3.11 ... 1/2 U 0.03 ... 15.17 ... M5 Plit EK Cha
RECX 6a 084239-7854.7 1.84 ... 2/2 U 0.16 ... 13.98 ... M7 Plit EL Cha
RECX 7a 084302-7904.7 2.62 ... 2/2 U 0.09 ... 10.76 ... M3 SB2; Plit EM Cha
RECX 9a 084419-7859.1 1.71 ... 2/2 U 0.38 ... 14.75 ... M4 V; Plit EN Cha
RECX 10 084432-7846.6 20.0 3.0 5(5)/12 C 0.26 0.03 12.41 ... K7 P = Plit EO Cha
RECX 11 084708-7859.6 4.84 0.04 7(7)/12 C 0.28 0.03 11.00 ... K4 P ≠ Plit EP Cha
RECX 12 084802-7855.0 1.26b 0.05 2(2)/12 C 0.18 0.03 13.92 0.73 M3e V; P = Plit EQ Cha
RECX 14 ... 1.73 ... 2/2 U 0.04 ... 17.07 ... M5e Plit ES Cha
RECX 15a 084319-7905.4 12.8 ... 2/2 U 0.44 ... 13.97 ... M3e Plit ET Cha
RECX 16 ..... ... ... ... .... ... ... 17.07 ... M5e ...
RECX 17 ...... ... ... ... .... ... ... 16.82 ... M5e ...
RECX 18 ...... ... ... ... .... ... ... 17.66 ... M5e ...

Notes. V = visual companion; B = binary system; Plit: period as given in the literature; AvV mag and B − V corrected for reddening.

(a)

ASAS very sparse observations;

(b)

period undetected in the periodogram of the complete time series;

(c)

vsini inconsistent with veq = 2πR/P;

(d)

from Sp. type;

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