@article{Shebanits:2021:10.5194/egusphere-egu21-6424,
author = {Shebanits, O and Hadid, L and Cao, H and Morooka, M and Dougherty, M and Wahlund, J-E and Hunt, G and Waite, H and Müller-Wodarg, I},
doi = {10.5194/egusphere-egu21-6424},
title = {The conductive dusty ionosphere of Saturn},
url = {http://dx.doi.org/10.5194/egusphere-egu21-6424},
year = {2021}
}

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TY  - JOUR
AB  - <jats:p>&lt;p&gt;Cassini&amp;#8217;s Grand Finale orbits brought us historical first in-situ measurements of Saturn&amp;#8217;s ionosphere, showing that it contains dusty plasma in the equatorial region. We present the Pedersen and Hall conductivities of the top ionosphere (10:50 &amp;#8211; 12:17 Saturn Local Time, 10N &amp;#8211; 20S planetocentric latitude), derived from particle and magnetometer data. We constrain the Pedersen conductivities to be at least 10&lt;sup&gt;-5&lt;/sup&gt; &amp;#8211; 10&lt;sup&gt;-4&lt;/sup&gt; S/m at ionospheric peak, a factor 10-100 higher than estimated previously by remote measurements, while the Hall conductivities are very close to 0 or in fact negative. We show that this is an effect of dusty plasma. Another effect is that ionospheric dynamo region thickness is increased to 300-800 km. Furthermore, our results suggest a temporal variation (decrease) of the plasma densities, mean ion masses and consequently the conductivities over the period of one month.&lt;/p&gt;</jats:p>
AU  - Shebanits,O
AU  - Hadid,L
AU  - Cao,H
AU  - Morooka,M
AU  - Dougherty,M
AU  - Wahlund,J-E
AU  - Hunt,G
AU  - Waite,H
AU  - Müller-Wodarg,I
DO  - 10.5194/egusphere-egu21-6424
PY  - 2021///
TI  - The conductive dusty ionosphere of Saturn
UR  - http://dx.doi.org/10.5194/egusphere-egu21-6424
ER  - 

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