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Mid-infrared lightcurve of Vesta
Sykes, M. V.; Tedesco, E. F.; Chamberlain, M. A.
We present a thermal mid-infrared lightcurve of Asteroid 4 Vesta and use this to infer variations in thermophysical properties over the surface. Vesta was observed over three nights during the May 2007 opposition with the Infrared Telescope Facility on Mauna Kea. Mid-infrared observations are compared to a model based on the Standard Thermal Model…
Assessing spectral evidence of aqueous activity in two putative martian paleolakes
Roush, Ted L.; Gross, Christoph; Marzo, Giuseppe A. +4 more
We evaluate the evidence for the presence of mineral spectral signatures indicative of the past presence of water at two putative paleolakes on Mars using observations by the Mars Reconnaissance Orbiter (MRO) Compact Reconnaissance Image Spectrometer for Mars (CRISM). CRISM spectra of both sites are consistent with laboratory spectra of Mg-rich ph…