The Role of the Large Millimeter Telescope in Black Hole Science with the Next-Generation Event Horizon Telescope

The landmark black hole images recently taken by the Event Horizon Telescope (EHT) have allowed detailed study of immediate surroundings supermassive holes (SMBHs) via direct imaging. These tantalizing early results motivate an expansion array, its instrumental capabilities, and dedicated long-term observations to resolve track faint dynamical features in jet accretion flow. next-generation (ngEHT) is a project that plans double number telescopes VLBI array extend dual-frequency 230 + 345 GHz, improving total snapshot coverage, as well observational agility. Large Millimeter (LMT) largest sub-mm single dish telescope world at 50 m diameter, both sensitivity central location within EHT make it key anchor station for other telescopes. In this work, we detail current planned future upgrades LMT will directly impact Very Baseline Interferometry (VLBI) performance ngEHT. include commissioning simultaneous GHz dual-frequency, dual-polarization heterodyne receiver, improved real-time surface measurement setting, improvements thermal stability, which should enable expanded daytime operation. We test characterize joining ngEHT through simulated Sgr A* M 87.