  MagAO-X system is a new adaptive optics for the Magellan Clay 6.5m telescope.
MagAO-X has been designed to provide extreme adaptive optics (ExAO) performance
in the visible. VIS-X is an integral-field spectrograph specifically designed
for MagAO-X, and it will cover the optical spectral range (450 - 900 nm) at
high-spectral (R=15.000) and high-spatial resolution (7 mas spaxels) over a
0.525 arsecond field of view. VIS-X will be used to observe accreting
protoplanets such as PDS70 b and c. End-to-end simulations show that the
combination of MagAO-X with VIS-X is 100 times more sensitive to accreting
protoplanets than any other instrument to date. VIS-X can resolve the planetary
accretion lines, and therefore constrain the accretion process. The instrument
is scheduled to have its first light in Fall 2021. We will show the lab
measurements to characterize the spectrograph and its post-processing
performance.
