Image Details
Caption: Figure 6.
IRAC color–color diagrams used for identifying YSO candicates in W49. Left: [3.6]–[4.5] vs. [4.5]–[5.8]; right: [4.5]–[5.8] vs. [5.8]–[8.0]. In both panels, red points are Class I, green points are Class II, and blue points are transition disk candidates.
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