Spatial variations in Enceladus’ Endogenic Emission

Details Spatial variations in Enceladus’ Endogenic Emission Spatial variations in Enceladus’ Endogenic Emission

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009dps....41.6106h&link_type=abstract

American Astronomical Society, DPS meeting #41, #61.06

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Scientific paper

In March and October 2008 the Cassini Composite Infrared Spectrometer (CIRS) obtained data with the highest spatial resolution (down to 8.5 km2) of Enceladus’ south polar region ever to be recorded in the far-infrared (10 to 600 cm-1). Analysis of these data shows that the high endogenic emission previously observed from Enceladus’ south polar region is not restricted to its four prominent "tiger stripe” fractures. Significant endogenic emissions of up to 0.75 MW km-2 is shown to be emitted by regions between the fractures, with the most active region observed so far lying between fractures Damascus and Baghdad. This result provides another important constraint on mechanisms by which Enceladus’ endogenic heat flow is produced and delivered to the surface.

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