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Home All issues Volume 501 / No 3 (July III 2009) A&A, 501 3 (2009) 973-983 Full HTML
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Table 1:

ONC target stars, observing log, and target properties1.
Star Obs. Dates Instrument Exp. time S/N I V-I Sp. Type $T_{\rm eff}$ $\Delta$(I-K) P $v_{\rm rad}$
(H97)     (sec)         (K) (mag) (days) (km s-1)
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12)
223a 15-02-04 UVES, CD4 $3\times3600$ 70 13.64 2.42 K5 4395 0.48 - $25.43\pm 1.58$
268 15-02-04 UVES, CD4 $3\times3600$ 95 12.88 1.61 K5-K6 4197 0.16 9.81 $27.80 \pm 1.02$
278 15-02-04 UVES, CD4 $3\times3600$ 70 13.66 1.94 K2-K7e 4395 1.69 6.76 $24.58 \pm 1.49$
487 15-02-04 UVES, CD4 $3\times3600$ 105 12.79 1.78 K6 4197 0.28 - $29.27 \pm 0.87$
673 15-02-04 UVES, CD4 $3\times3600$ 110 13.07 1.83 K5 4395 0.81 1.44 $24.53 \pm 1.29$
683 15-02-04 UVES, CD4 $3\times3600$ 130 11.76 1.85 K6 4197 0.28 11.50 $25.73\pm 1.51$
907 15-11-04 UVES, CD4 $4\times2600$ 125 12.77 1.60 K1-K4 4775 - - $20.82\pm 1.24$
664 15-02-04 GIRAFFE $3\times3600$ 150 14.05 2.88 K5.5-K7 4197 -0.18 7.20 $25.36 \pm 1.18$
1020 15-02-04 GIRAFFE $3\times3600$ 200 12.65 1.40 K6 4197 -0.01 - $27.60 \pm 1.82$
1 Identifier (1), I, V-I, spectral-types (6, 7, 8), and $T_{\rm eff}$ values (9 - from spectral-types using the scale of Kenyon & Hartmann 1995) come from Hillenbrand (1997); K-band excess (10) and rotational periods (11) were taken from Hillenbrand et al. (1998) and Herbst et al. (2002), respectively. Radial velocities (12) were measured from our spectra.

Source LaTeX | All tables | In the text

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