Rotationally supported disks are the eventual sites of planet formation, and during the early phases of star formation they are key in accretion processes and fragmentation. The question of when they form arises. Such disks have been observed in Pre-main sequence and Class I objects. Disk-like structures in continuum and indications of rotation have recently been detected toward Class 0 objects. Using ALMA Cycle 0 observations, the disk of VLA1623A, a Class 0 source, is characterized.

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Reference: Murillo, N. M., Lai, S.-P., Bruderer, S., Harsono, D. and van Dishoeck, E. F., 2013, A&A, 560, 103