TY - JOUR
T1 - Seasonal evolution of Titan's dark polar hood
T2 - Midsummer disappearance observed by the Hubble Space Telescope
AU - Lorenz, Ralph D.
AU - Lemmon, Mark T.
AU - Smith, Peter H.
PY - 2006/7
Y1 - 2006/7
N2 - Titan, Saturn's largest moon, has a dense organic-laden atmosphere that displays dramatic seasonal variations in composition and appearance. Here we document the evolution of the dark polar hood, first seen in 1980 by Voyager 1 around the north pole, and report quantitative measurements of the hood's disappearance from the south pole in 2002-2003 using previously unpublished observations with the Hubble Space Telescope Advanced Camera for Surveys (HST/ACS). These data support a model of the hood as a transient structure associated with downwelling during polar winter.
AB - Titan, Saturn's largest moon, has a dense organic-laden atmosphere that displays dramatic seasonal variations in composition and appearance. Here we document the evolution of the dark polar hood, first seen in 1980 by Voyager 1 around the north pole, and report quantitative measurements of the hood's disappearance from the south pole in 2002-2003 using previously unpublished observations with the Hubble Space Telescope Advanced Camera for Surveys (HST/ACS). These data support a model of the hood as a transient structure associated with downwelling during polar winter.
KW - Planets and satellites: individual: Titan
KW - Ultraviolet: Solar system
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U2 - 10.1111/j.1365-2966.2006.10405.x
DO - 10.1111/j.1365-2966.2006.10405.x
M3 - Article
AN - SCOPUS:33745578216
SN - 0035-8711
VL - 369
SP - 1683
EP - 1687
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 4
ER -