**Table 1:** Observed sample of wide PMS binaries.
Name	HBC	Other	RA	Dec		Cloud	D	V	K	RZ93^c		add.	SB	SpT1	SpT2	Ref
		name	[J2000.0]				[pc]			$\rho$	PA	comp.^b				(SpT)
LkH $\alpha$ 262/263 ..	8+9		02 56 08.4	+	20 03 40	MBM 12	275	14.6	9.5	4.1	57	X		M0	M0+M4	1
J 4872 ...............			04 25 17.6	+	26 17 51	Tau-Aur	142	13.0	8.6	3.5	231	X		K9	M1	2
FV Tau .............	386+387		04 26 53.6	+	26 06 55	Tau-Aur	142	15.4	7.4	0.7	289	X		K5+K6	M3+M5	1
UX Tau .............	43+42		04 30 04.0	+	18 13 49	Tau-Aur	142	10.7	7.6	2.7	270	X		K4	M2+M3	1
DK Tau .............	45		04 30 44.3	+	26 01 25	Tau-Aur	142	12.6	7.1	2.4	119			K7/K9	K7/M1	3, 2
HK Tau .............	48		04 31 50.6	+	24 24 18	Tau-Aur	142	15.0	8.6	2.4	172			M1	M2	4, 2
LkH $\alpha$ 266 .........	51+395	V710 Tau	04 31 57.8	+	18 21 37	Tau-Aur	142	14.6	8.5	3.2	177			M0.5	M2	3
GG Tau .............	54		04 32 30.3	+	17 31 41	Tau-Aur	142	12.3	7.4	1.4	185	X		K7+M0.5	M5.5+M7.5	1
UZ Tau .............	52+53		04 32 43.0	+	25 52 32	Tau-Aur	142	12.9	7.4	3.6	275	X	1	M1	M2+M2	1
HN Tau .............	60+406		04 33 39.3	+	17 51 53	Tau-Aur	142	13.7	8.4	3.2	217			K5	M4	3
IT Tau ...............		Haro 6-26	04 34 13.9	+	26 11 42	Tau-Aur	142	14.9	7.9	2.4	224			K3	M4	2
L1642-1 ............	413	EW Eri	04 35 02.3	-	14 13 41	L1642	140	13.7	7.7	2.7	349			K7		5
RW Aur ............	80+81		05 07 49.6	+	30 24 05	Tau-Aur	142	10.3	7.0	1.4	254		2	K1:	K5:	4, 1
CO Ori ..............	84		05 27 38.3	+	11 25 39	Orion	460	10.6	6.5	2.0	280			F8:e		4
AR Ori .............	155		05 35 54.1	-	05 04 14	Orion	460	13.9	9.8	2.0	249			K7/M0		4
LkH $\alpha$ 336 ........	190+516		05 54 20.1	+	01 42 56	L1622	460	14.4	9.2	5.8	95			K7	M0.5	1
CGH $\alpha$ 5/6 ........			07 31 37.4	-	47 00 22	Gum Neb.	450	14.2	9.1	11.1	317			K7	K2/K5	6
PH $\alpha$ 14 ............	554		08 08 33.8	-	36 08 10	Gum Neb.	450	15.8	10.3	0.6	164			M2:		4, 7
PH $\alpha$ 30 ............		SPH 42	08 12 05.6	-	35 31 45	Gum Neb.	450	15.1	12.2	0.7	345			B2e		8
vBH 16 .............		vdBH 16	08 27 39.0	-	51 09 50	Gum Neb.	450	15.6	9.3	4.5	330
PH $\alpha$ 51 .............	561		08 15 55.3	-	35 57 58	Gum Neb.	450	15.9	11.1	0.6	185			K7/M0		8
HD 76534 .........		He 3-225	08 55 08.7	-	43 28 00	Vela R2^d	830^d	8.0	7.8	2.1	303			B2	B3	14
SX Cha .............	564	T3	10 55 59.9	-	77 24 41	Cha I	160	14.7	8.7	2.2	288			M0.5		4
Sz 15 .................		T19	11 05 41.5	-	77 54 44	Cha I	160	13.2	10.6	10.6	28			K5/K6		7
ESO H $\alpha$ 281 .....			11 07 04.0	-	76 31 45	Cha I	160	13.7^a	9.7	1.7	167			M0.5	M4.5	10
Sz 19 ................	245	DI Cha	11 07 20.7	-	77 38 07	Cha I	160	10.9	6.2	4.6	203			G2		4
VV Cha ............	573	T27	11 07 28.4	-	76 52 12	Cha I	160	14.8	9.5	0.8	14			M1.5	M3	10
VW Cha ............	575	T30/T31	11 08 01.8	-	77 42 29	Cha I	160	12.6	7.0	16.7	221	X	3	K5/K7	K7	1
Glass I ...............		Ced 111 IRS 4	11 08 15.4	-	77 33 54	Cha I	160	13.3	6.9	2.4	105			K3	G5e	11
CoD -29 $\hbox{$^\circ$ }$ 8887 ...		TWA 2	11 09 14.0	-	30 01 39	TW Hya	50	11.1	6.7	<0.8	40			M2e	M2	12
Sz 30 ..................		T39	11 09 12.3	-	77 29 12	Cha I	160	13.2	9.0	1.1	22			M0.5	M2	10
Hen 3-600 ..........		TWA 3	11 10 28.9	-	37 32 05	TW Hya	50	12.1	6.8	1.4	230		4	M3e	M3.5	12
Sz 41 .................	588	T51	11 12 24.5	-	76 37 06	Cha I	160	11.6	8.0	1.9	164		5	K3.5		9
CV Cha .............	247+589	T52	11 12 27.8	-	76 44 22	Cha I	160	11.0	6.9	11.4	105		6	G8	G:	4
Sz 48 ..................			13 00 53.2	-	77 09 10	Cha II	178	17.4	9.5	1.5	232			K7/M0	M0	10
BK Cha ..............			13 07 09.3	-	77 30 24	Cha II	178	15.2	8.4	0.8	329			K5/K7	M0.5	10
Sz 60 ..................			13 07 23.4	-	77 37 23	Cha II	178	17.1	9.5	3.4	280			M1	M4	13
Sz 62 ..................			13 09 50.7	-	77 57 24	Cha II	178	15.6	9.1	1.1	261			M2	M3.5	10
Herschel 4636 ....		Hen 3-949	13 57 44.1	-	39 58 45	NGC 5367	630	9.7	7.2	3.7	214			B3		14
ESO H $\alpha$ 283 ......			15 00 29.6	-	63 09 46	Circinus	700	15.5	10.3	2.1	242
Sz 65 ..................	597		15 39 27.7	-	34 46 17	Lup I	190	12.7	8.0	6.4	98			M0		15
Sz 68 ..................	248	HT Lup	15 45 12.9	-	34 17 31	Lup I	190	10.4	6.5	2.6	295	X		K2	M6	1
HO Lup ..............	612		16 07 00.6	-	39 02 19	Lup III	190	13.0	8.6	1.5	36			K7/M0	M2	10
Sz 101 ................			16 08 28.4	-	39 05 32	Lup III	190	15.5	9.4	0.8	305			M2.5	M3.5	10
Sz 108 ................	620		16 08 42.7	-	39 06 18	Lup III	190	13.1	8.8	4.2	25			M1		15
Sz 120 ................		HD 144965	16 10 10.6	-	40 07 44	Lup III	190	7.1	6.2	2.6	142			B5		15
WSB 3 ...............			16 18 49.5	-	26 32 53	Oph	160	15.0	9.3	0.6	162			M3		16
WSB 11 .............			16 21 57.3	-	22 38 16	Oph	160	18.5^a	10.1	0.5	...
WSB 20 .............	257	Haro 1-4	16 25 10.5	-	23 19 14	Oph	160	13.4	7.5	<1.0	23			K6/K7		4
WSB 28 .............		ISO-Oph 27	16 26 20.7	-	24 08 48	Oph	160	14.7^a	9.5	5.1	358			M3	M7	17
SR 24 .................	262	WSB 42	16 26 58.8	-	24 45 37	Oph	160	15.9	7.1	5.2	348	X		K2:	M0.5	1
Elias 2-30 ..........		SR 21	16 27 10.2	-	24 19 16	Oph	160	14.1	6.7	6.4	175			G2.5	M4	17
WSB 46 .............	641+640	ROXs 20	16 27 15.1	-	24 51 39	Oph	160	14.9	9.4	10.3	301			M0/M3	M1/M4	18
Haro 1-14c .........	644+267		16 31 04.4	-	24 04 32	Oph	160	12.3	7.8	12.9	122		7	K3	M0	4
ROXs 43 .............		NTTS 162819-2423	16 31 20.1	-	24 30 05	Oph	160	10.6	6.7	4.3	13	X	8	G0	K3	1
Elias 2-49 ...........		HD 150193	16 40 17.9	-	23 53 45	Oph	160	8.9	5.5	1.1	227			A1/A3Ve		19
HBC 652 ............	652	V2507 Oph	16 48 18.0	-	14 11 15	L162	160	13.5	7.5	8.7	322			K4/K5		4
LkH $\alpha$ 346 ...........	275	TH $\alpha$ 27-4	17 11 03.9	-	27 22 57	B59	160	14.3	8.1	5.0	329			K7	M5	1

Note: HBC = catalog entry number in Herbig & Bell 1988.
^a R magnitude. ^b Additional visual companion(s) discovered since RZ93 (see references in Table 3 or in the text). ^c Astrometry of the wide binary as quoted in RZ93 with $\rho$ in arcsec and PA in degree (only one entry for the possible triples quoted in RZ93). ^d See Herbst (1975) and van den Ancker et al. (1998). Spectral type references: (1) See Table 8. (2) Duchêne (1999). (3) Hartigan et al. (1994). (4) Herbig & Bell (1988). (5) Sandell et al. (1987). (6) Reipurth & Pettersson (1993). (7) Kim et al. (2005). (8) Pettersson (1987). (9) Luhman (2004). (10) Brandner & Zinnecker (1997). (11) Feigelson & Kriss (1989). (12) Torres et al. (2003). (13) Hughes & Hartigan (1992). (14) Viera et al. (2003). (15) Hughes et al. (1994). (16) Meyer et al. (1993). (17) Prato et al. (2003). (18) Luhman & Rieke (1999). (19) Gray & Corbally (1998).
Distance references: Chamaeleon (I: 160 pc $\pm$ 15 pc, II: 178 pc $\pm$ 18 pc, Whittet et al. 1997), Gum Nebula (450 pc, Kim et al. 2005), Lupus (190 pc $\pm$ 27 pc, Wichmann et al. 1998), Ophiuchus (160 pc, Whittet 1974), Taurus-Auriga (142 pc $\pm$ 14 pc, Wichmann et al. 1998), TW Hya (50 pc $\pm$ 12 pc, Mamajek 2005), MBM12 (275 pc, Luhman 2001), L1642, aka MBM20 (112-160 pc, Hearty et al. 2000, 140 pc adopted), NGC 5367, Circinus, L162 and B59 (values reported in RZ93 adopted).
SB notes: (1) UZ Tau A: 19.1-days single-lined SB (SB1) (Mathieu et al. 1996), converted to double-lined SB (SB2) by Prato et al. 2002. (2) RW Aur A: suspected SB1 with P = 2.77-days (Gahm et al. 1999; Petrov et al. 2001; see also Alencar et al. 2005). (3) VW Cha A: possible SB2 (Melo 2003). (4) TWA 3A: suspected SB2 (Torres et al. 2003). (5) Sz 41 A: probable SB (Reipurth et al. 2002) with period of about 125 days (best candidate out of five radial-velocity variables). (6) CV Cha: possibly SB, variable radial-velocity (Reipurth et al. 2002). (7) Haro 1-14c: 591-days SB1 (Reipurth et al. 2002), converted to SB2 by Simon & Prato 2004. (8) ROXs 43 A: 89-days SB1 (Mathieu et al. 1989).

Source LaTeX | All tables | In the text