Abstract
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and report quantitative measurements of the hood's disappearance from the south pole in 2002-2003 using previously unpublished observations with the Hubble Space Telescope Advanced Camera for Surveys (HST/ACS).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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1683-1687 |
| Number of pages | 5 |
| Journal | Monthly Notices of the Royal Astronomical Society |
| Volume | 369 |
| Issue number | 4 |
| DOIs | |
| State | Published - Jul 2006 |
Keywords
- Planets and satellites: individual: Titan
- Ultraviolet: Solar system
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science