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Table 8:

Intermediate- and low-mass X-ray stars in $\sigma $ Orionis with colours $J-K_{\rm s} >$1.15 maga.

No. 		Name Alternative $J-K_{\rm s}$ Sp. pEW(Li I) pEW(H$\alpha$) SED Phot.
    name [mag] type [mÅ] [Å] class variable

29 		Mayrit 92149 AB [W96] rJ053847-0237 $1.24\pm0.06$ M1.0: $481\pm8$ $-20.9\pm1.2$ II no
36 Mayrit 203283 [W96] rJ053831-0235 $1.16\pm0.04$ M0.0: $479\pm6$ $-10.2\pm0.9$ II no
45 Mayrit 609206 V505 Ori $2.01\pm0.04$ K7.0 $431\pm11$ $-25.1\pm0.7$ II yes
61 Mayrit 30241 [HHM2007] 687 $1.28\pm0.05$ ... ... ... II no
72 Mayrit 521199 TX Ori $1.46\pm0.04$ K4 ... -16.6 II yes
75 Mayrit 622103 BG Ori $1.30\pm0.04$ M0.5: $480\pm7$ $-40\pm3$ II yes
79 Mayrit 203260 Haro 5-11 $1.19\pm0.04$ M2.0: $342\pm2$ $-198\pm12$ II no
80 Mayrit 497054 V509 Ori $1.26\pm0.03$ M0.5: $263\pm4$ $-25.8\pm0.8$ II yes

Notes. (a) Spectral types and Li  I and H$\alpha$ pseudo-equivalent widths are from Zapatero Osorio et al. (2002) and Sacco et al. (2008). The colon after the spectral type denotes a estimation based on photometry.


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