Other
Scientific paper
Nov 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001dps....33.1712w&link_type=abstract
American Astronomical Society, DPS Meeting #33, #17.12; Bulletin of the American Astronomical Society, Vol. 33, p.1065
Other
Scientific paper
The first spectroscopic FUV images of Io revealed a two-fold brightening of all bright neutral emission lines over the four-hour HST ``visit'' on October 14, 1997 [Roesler 1999]. We subsequently found simultaneous brightenings in [O 1] 6300Å Io emission [Oliversen 2001] and [S 2] 1256Å torus emission. [Woodward 2001a]. A preliminary analysis of our extensive set of [S 2] 6731Å groundbased images of the Io torus [Woodward 1999] showed a longitudinal emission enhancement from ~ 70\arcdeg--160\arcdeg [Woodward 2001b]. We now find that this enhancement was present in September 1997 as well, but at significantly reduced contrast (see figure). In this work, we study the persistence and variability of this and other longitudinal structures in the torus, based on STIS and groundbased data. \leavevmode \epsfxsize=0.33\hsize \epsfbox{600.eps} This work was supported in part by NASA grants NAS5-30131, NAG5-6787, NAG5-6546, and RTOP 344-32-30.
Moos Warren H.
Oliversen Ronald James
Roesler Fred L.
Scherb Frank
Woodward Roland Carey Jr.
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