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We present the first dust emission results toward a sample of sevenprotostellar disk candidates around Class 0 and I sources in the Perseusmolecular cloud from the VLA Nascent Disk and Multiplicity (VANDAM) survey with~0.05'' or 12 AU resolution. To examine the surface brightness profiles ofthese sources, we fit the Ka-band 8 mm dust-continuum data in the u,v-plane toa simple, parametrized model based on the Shakura-Sunyaev disk model. Thecandidate disks are well-fit by a model with a disk-shaped profile and havemasses consistent with known Class 0 and I disks. The inner-disk surfacedensities of the VANDAM candidate disks have shallower density profilescompared to disks around more evolved Class II systems. The best-fit modelradii of the seven early-result candidate disks are R_c > 10 AU; at 8 mm, theradii reflect lower limits on the disk size since dust continuum emission istied to grain size and large grains radially drift inwards. These relativelylarge disks, if confirmed kinematically, are inconsistent with theoreticalmodels where the disk size is limited by strong magnetic braking to < 10 AU atearly times.

The VLA Nascent Disk and Multiplicity Survey: First Look at Resolved Candidate Disks around Class 0 and I Protostars in the Perseus Molecular Cloud