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We explore resonance-enhanced sample analysis with a prototype two-step laser desorption time-of-flight mass spectrometer (L2MS) to characterize the dependence of resonant desorption on the L2MS detection sensitivity. In L2MS, desorption and ionization of analyte is separated into two distinct steps: an IR laser desorbs surface material and a UV laser ionizes analyte from the resulting neutral plume...
We extracted physical atmospheric parameters from a 23 July 2008 single-chord stellar occultation of the star USNO-B1.0 0759-0739128 (I-band magnitude of 12.60) by Neptune using a light curve model fitting technique. We observed the occultation using the Agile CCD camera mounted on the Astrophysical Research Consortium 3.5m telescope at Apache Point Observatory. We found isothermal temperatures of...
The utilization of a portable, low-mass, and low-power method for identifying biomarkers is essential for investigations of geologic samples on other terrestrial bodies, where spacecraft engineering requirements frequently constrain the mass and power consumption of scientific instruments. We discuss the capabilities and implementation of several in situ instruments with astrobiological applications...
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