Photon Stimulated Desorption of MgS as a Potential Source of Sulfur in Mercury's Exosphere

Experimental data for x-ray photoelectron spectroscopy (XPS) and resonance enhanced multiphoton ionization (REMPI) characterization of the surface of magnesium sulfide (MgS) exposed to 193 nm UV photons. These data accompany the manuscript "Photon Stimulated Desorption of MgS as a Potential Source of Sulfur in Mercury’s Exosphere" 'submitted in April 2020 to the Journal of Geophysical Research - Planets. The 'Mg-1s' and 'S-2p' data were used to make the XPS image (Figure 1). The 'power' data were used to make the signal intensity vs. power images (Figures 2 and 3). The 'delay' data were used to fit Maxwellian velocity distributions, and the fits are included (Figure 4).  The 'MC' data were the output results of the Monte Carlo model used to determined the density of sulfur as a function of altitude above Mercury (Figure 6).