Thanks to technological improvements in telescope design and data
processing, it is now possible for deep, wide-field and high spatial
resolution surveys such as ZTF, and ultimately the Vera C. Rubin Observatory,
to monitor hundreds of square degrees every night.
These surveys are capable of discovering microlensing events
in a much wider range of stellar environments than could previously be
explored, paving the way to investigate low-mass star, brown dwarf, and planet
populations in new regions of the galaxy, as well as probing the populations
of isolated black holes. However, they generally provide lower-cadence
survey data than traditional microlensing surveys, posing challenges for
event identification and follow-up.