The Radio Ammonia Mid-Plane Survey (RAMPS)

The Radio Ammonia Mid-Plane Survey (RAMPS) is a Galactic plane molecular line survey in the 1st quadrant of the Milky Way. We perform RAMPS observations with the 100-meter Green Bank Telescope in Green Bank, West Virginia. The purpose of RAMPS is to provide a large sample of dense molecular clumps to help us better understand the formation of high-mass stars. RAMPS primarily targets the NH3(1,1)-(5,5) inversion transitions, which trace dense gas, and the H2O maser transition at 22.235 GHz, which traces sites of active star formation. The RAMPS dataset is comprised of the raw data cubes, the processed data cubes, maps of the zeroth and first moment, maps of the NH3(1,1) optical depth, the NH3 rotational temperature, the total NH3 column density, the NH3 line width, the velocity, and the filling fraction.