On the location of the Io plasma torus: Voyager 1 observations
The Voyager 1 outbound ultraviolet observations of the Io plasma torus are used to determine the location of the ansae, to obtain a third viewing angle of this structure in the Jovian magnetosphere. At an angle of −114° with respect to the Sun–Jupiter line, or a Jovian local time of 04:30 LT, th...
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Copernicus Publications
2018-06-01
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| Series: | Annales Geophysicae |
| Online Access: | https://www.ann-geophys.net/36/831/2018/angeo-36-831-2018.pdf |
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doaj-31853acb1e9944f7af4754dc2671ddc02020-11-24T23:30:57ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05762018-06-013683183910.5194/angeo-36-831-2018On the location of the Io plasma torus: Voyager 1 observationsM. Volwerk0Space Research Institute, Austrian Academy of Sciences, 8042 Graz, AustriaThe Voyager 1 outbound ultraviolet observations of the Io plasma torus are used to determine the location of the ansae, to obtain a third viewing angle of this structure in the Jovian magnetosphere. At an angle of −114° with respect to the Sun–Jupiter line, or a Jovian local time of 04:30 LT, the Voyager 1 data deliver a distance of 5.74±0.10 <i>R</i><sub>J</sub> for the approaching and 5.83±0.15 <i>R</i><sub>J</sub> for the receding ansa. Various periodicities in the radial distance, brightness and width of the ansae are seen with respect to system III longitude and Io phase angle. The torus ribbon feature does not appear in all ansa scans.https://www.ann-geophys.net/36/831/2018/angeo-36-831-2018.pdf |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
M. Volwerk |
| spellingShingle |
M. Volwerk On the location of the Io plasma torus: Voyager 1 observations Annales Geophysicae |
| author_facet |
M. Volwerk |
| author_sort |
M. Volwerk |
| title |
On the location of the Io plasma torus: Voyager 1 observations |
| title_short |
On the location of the Io plasma torus: Voyager 1 observations |
| title_full |
On the location of the Io plasma torus: Voyager 1 observations |
| title_fullStr |
On the location of the Io plasma torus: Voyager 1 observations |
| title_full_unstemmed |
On the location of the Io plasma torus: Voyager 1 observations |
| title_sort |
on the location of the io plasma torus: voyager 1 observations |
| publisher |
Copernicus Publications |
| series |
Annales Geophysicae |
| issn |
0992-7689 1432-0576 |
| publishDate |
2018-06-01 |
| description |
The Voyager 1 outbound ultraviolet observations of the Io plasma torus are
used to determine the location of the ansae, to obtain a third viewing angle
of this structure in the Jovian magnetosphere. At an angle of −114°
with respect to the Sun–Jupiter line, or a Jovian local time of 04:30 LT,
the Voyager 1 data deliver a distance of 5.74±0.10 <i>R</i><sub>J</sub> for
the approaching and 5.83±0.15 <i>R</i><sub>J</sub> for the receding ansa.
Various periodicities in the radial distance, brightness and width of the
ansae are seen with respect to system III longitude and Io phase angle. The
torus ribbon feature does not appear in all ansa scans. |
| url |
https://www.ann-geophys.net/36/831/2018/angeo-36-831-2018.pdf |
| work_keys_str_mv |
AT mvolwerk onthelocationoftheioplasmatorusvoyager1observations |
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