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Table 1

Sample stars.

ONC
Stara,c I V − I Sp. Type log (L/L⊙) Mem. vsini Notesd V rad Commente
(mag) (K) (%) (km s-1) (km s-1)
JW365 11.70 1.96 K2-3 4775 0.82 99 67.6  ±  5.8 NIR, WTTS: ... SB2
JW373 13.48 3.37 K2-7 4775 0.99 99 ... HH, NIR, CTTS ... SB1
JW589 11.30 2.12 G8-M0 5236 1.23 99 14 r 27.1  ±  0.8 M
JW601 12.52 1.25 K2-5 4775 0.05 98 12.3  ±  0.9 WTTS 22.0  ±  0.4 M
JW641 11.51 1.74 mid-G/early-K 5236 0.91 99 46.3  ±  4.1 ... SB2
JW733 13.14 2.33 M0.5 3724 0.04 99 ... 27.4  ±  0.1 M
JW868 13.19 1.96 K3-5 4581 0.16 99 11.7  ±  1.3 NIR, HH 24.7  ±  0.5 M
JW907 12.77 1.60 K1-4 4775 0.17 99 32.8  ±  2.2 WTTS 22.9  ±  0.2 M
JW157 10.15 1.56 K0-4 4775 1.19 99 7 N 28.0  ±  0.1 M
P1455 10.08 0.76 G0-1 5902 1.06 97 21 21.2  ±  0.2 M
OB1b
Starb,c V V − I Sp. Type log (L/L⊙) Notesf V rad Commente
(mag) (K) (km s-1)
CVSO118 14.70 1.26 K5 4350 −0.43 WTTS 32.1  ±  0.4 M
CVSO125 14.53 1.34 K5 4350 −0.33 WTTS 27.3  ±  1.4 M
CVSO128 14.65 1.50 K6 4205 −0.17 WTTS ... SB1
CVSO129 14.15 1.23 K6 4205 −0.17 WTTS ... SB1
CVSO159 14.83 1.85 K7 4060 −0.14 WTTS 26.0  ±  1.3 M
CVSO161 14.32 1.40 K6 4205 −0.19 WTTS 31.7  ±  0.9 M
CVSO165 13.73 1.40 K6 4205 0.15 CTTS 31.4  ±  0.7 M
CVSO56 14.81 1.53 K7 4060 −0.33 WTTS 18.7  ±  0.3 PM
CVSO58 14.79 1.52 K7 4060 −0.24 CTTS 18.7  ±  1.0 PM
CVSO65 14.47 1.35 K6 4205 −0.33 WTTS 10.2  ±  0.3 NM

Notes. For the ONC stars we list: object name, I magnitude, V − I color, spectral type, photometric effective temperature, luminosity, membership probability, vsini, and notes. For the OB1b star we give: star name, V magnitude, V − I color, spectral type, effective temperature from spectral type, luminosity, and object class. In the last two columns our radial velocity values and comments are listed for both regions.

(b)

CVSO = CIDA Variability Survey of Orion (Briceño et al. 2005).

(c)

2MASS (Cutri et al. 2003) data for all the ONC/OB1b targets; Spitzer (Rebull et al. 2006) data at 3.6 < λ < 8   μm for JW373 and JW157; infrared (Gezari et al. 1999) data at 1.25 < λ < 25   μm for JW157, JW373, JW589, and JW601;

(d)

HH = Herbig-Haro object of host star; r = radio continuum source; N = N-band excess; NIR = photometric near-infrared excess. Notes from Feigelson et al. (2002) and Sicilia-Aguilar et al. (2005).

(e)

SB = Spectroscopic binary (1: single-lined; 2: double-lined); M = Member; PM = Probable OB1a/25 Ori member; NM = non-member of OB1b.

(f)

WTTS: Weak-lined T Tauri star; CTTS: Classical T-Tauri star. Notes from Briceño et al. (2005).

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