National Radio Astronomy Observatory eNews: "New Hydrogen Maser Installed at the Large Millimeter Telescope for High Sensitivity mm-wave Very Long Baseline Interferometry"
CRyA-UNAM graduate student Gisela Ortiz sets up the maser. The maser’s excellent stability depends on keeping a copper cavity temperature stabilized to high precision – 2 days were required for the maser to reach thermal equilibrium. Image credit: NRAO eNews
"At 1.3mm wavelength, the LMT will join other telescopes worldwide in the Event Horizon Telescope array to image the event horizons of SgrA* and the supermassive black hole at the center of the nearby elliptical galaxy M87."
By Shep Doeleman for National Radio Astronomy Observatory eNews