Titan Stratospheric Haze Bands Observed in Cassini VIMS as Tracers of Meridional Circulation
نویسندگان
چکیده
Abstract We analyzed Cassini data to derive the nature and evolution of circumglobal annuli observed in stratosphere Titan, Saturn's largest moon. The were between 2004 2017 acquired by Visual Infrared Mapping Spectrometer on board spacecraft. a north polar annulus, an equatorial several secondary annuli. Pre-Cassini telescopic observations Hubble Space Telescope Keck reported atmospheric feature consistent with presence south annulus 1999 2001, although this was not Cassini. Relative atmosphere near annuli, they appear dark at 300–500 nm bright methane absorption channels such as ones 900 1150 nm. seems rotate around pole. Alternatively, it about point offset from solid-body rotation axis few degrees; turn rotates axis.
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ژورنال
عنوان ژورنال: The planetary science journal
سال: 2022
ISSN: ['2632-3338']
DOI: https://doi.org/10.3847/psj/ac582d