  AT2019wey is a Galactic low mass X-ray binary with a candidate black hole
accretor first discovered as an optical transient by ATLAS in December 2019. It
was then associated with an X-ray source discovered by SRG in March 2020. After
observing a brightening in X-rays in August 2020, VLA observations of the
source revealed an optically thin spectrum that subsequently shifted to
optically thick, as the source continued to brighten in radio. This motivated
observations of the source with the VLBA. We found a resolved source that we
interpret to be a steady compact jet, a feature associated with black hole
X-ray binary systems in the hard X-ray spectral state. The jet power is
comparable to the accretion-disk X-ray luminosity. Here, we summarize the
results from these observations.
