Welcome to the VLA Nascent Disk and Multiplicity (VANDAM) Survey Website!
The VANDAM survey is a 264 hour Karl G. Jansky Very Large Array (VLA) survey of all known protostars in the Perseus molecular cloud, at a distance of ~230 parsecs. The survey is being conducted at wavelengths of 8 mm, 1 cm, 4cm and 6.4 cm using the Ka-band and C-band receiver systems. The observations are being conducted in two array configurations at Ka-band; A configuration for the highest resolution and B configuration for more sensitivity to compact, extended structure. The best resolutions in A and B configurations are is ~0.065" (15 AU) and in B-configuration ~0.2 46 AU), respectively.Data Release Timeline
All Ka-band imaging and measurement sets are available at http://jansky.nhn.ou.eduA subset of the A and B configuration data are available on the Harvard Dataverse https://dataverse.harvard.edu/dataverse/VANDAM
Goals
- Characterize the frequency of multiplicity in the protostellar phase
- Determine the distributions of protostellar companion separations
- Resolve disks surrounding protostellar sources
- Characterize spectral index of dust emission
- Characterize emission from protostellar jets at centimeter wavelengths
Status
B-configuration observations - Completed 11/2013A-configuration observations - Completed 9/11/2015