Infrared photometry in GL490 star-forming region

Using the infrared photometry data extracted from the 2MASS, IRAS and MSX databases, 50 suspected young stellar objects (YSOs) are selected from about 37500 infrared objects in the 3x3deg^2^ area with the center at (l,b=142.5,+1.0), in the vicinity of the young stellar object GL 490 in the dark cloud T 942 (Dobashi et al., 2005PASJ...57S...1D, Cat. <VII/244>). The spectral energy distributions between 700nm and 100um suggest that most of the selected objects may be YSOs of classes I and II.

In the color-magnitude diagram Ks vs. H-Ks the suspected YSOs occupy an area right of the main sequence what can be interpreted as being caused by the effects of luminosity, interstellar and circumstellar reddening and infrared thermal emission in circumstellar envelopes and disks.