JHK_s diagram of the stars detected in all the 3 bands with 2MASS in the region surveyed. Solid triangles are the Hα emission-line stars in Table 4. The solid and dashed lines are, respectively, the location of main sequence and giant stars from Bessell & Brett (1988) corrected to the 2MASS photometric system (Carpenter 2001). The long-dashed line represents the CTTS location from Meyer et al. (1997). The dotted lines show the direction of the interstellar reddening vectors from Straižys et al. (2008).