A survey of ultra-compact high-state AM CVn binaries with ZTF and Gaia: New discoveries and observational constraints on Galactic space density

Ilkham Galiullin, Antonio C. Rodriguez, Kareem El-Badry +9

Ultra-compact AM CVn binaries in the high-state of stable mass transfer ($\dot{M}\gtrsim 10^{-9}{M}_{\odot }/\mathrm{yr}$) are expected to be among the loudest persistent sources for upcomin…