English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Among the persistent questions raised by the existence of a rotationalmodulation of the Saturn Kilometric Radiation (SKR), the origin of thevariability of the 10.8 hours SKR period at a 1% level over weeks to yearsremains intriguing. While its short-term fluctuations (20-30 days) have beenrelated to the variations of the solar wind speed, its long-term fluctuations(months to years) were proposed to be triggered by Enceladus mass-loadingand/or seasonal variations. This situation has become even more complicatedsince the recent identification of two separated periods at 10.8h and 10.6h,each varying with time, corresponding to SKR sources located in the southern(S) and the northern (N) hemispheres, respectively. Here, six years of Cassinicontinuous radio measurements are investigated, from 2004 (pre-equinox) to theend of 2010 (post-equinox). From S and N SKR, radio periods and phase systemsare derived separately for each hemisphere and fluctuations of radio periodsare investigated at time scales of years to a few months. Then, the S phase isused to demonstrate that the S SKR rotational modulation is consistent with anintrinsically rotating phenomenon, in contrast with the early Voyager picture.

Variability of southern and northern periodicities of Saturn Kilometric Radiation