A High-Amplitude Thermal Anomaly of Probable Magnetospheric Origin of Saturn's Moon Mimas

Computer Science

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

Spectral maps of Mimas' daytime thermal emission show a previously unobserved thermal anomaly on Mimas' surface. A sharp V-shaped boundary, centered at 0° N and 180° W, separates relatively warm daytime temperatures from a cooler anomalous region occupying low- to mid-latitudes on the leading hemisphere. Subsequent observations show the anomalous region is also warmer than its surroundings at night, indicating high thermal inertia. Thermal inertia in the anomalous region is 67±30 Jm-2K-1s½, compared to <16 Jm-2K-1s½ outside the anomaly. Bolometric Bond albedos are similar between the two regions, 0.49 - 0.70. The mapped portion of the thermally anomalous region coincides in shape and location to a region of high-energy electron deposition from Saturn's magnetosphere, which also has unusually high near-UV reflectance. It is therefore likely that high-energy electrons, which penetrate Mimas' surface to the centimeter depths probed by diurnal temperature variations, also alter the surface texture dramatically increasing its thermal inertia.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A High-Amplitude Thermal Anomaly of Probable Magnetospheric Origin of Saturn's Moon Mimas does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A High-Amplitude Thermal Anomaly of Probable Magnetospheric Origin of Saturn's Moon Mimas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A High-Amplitude Thermal Anomaly of Probable Magnetospheric Origin of Saturn's Moon Mimas will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1474568

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.