Auroral Hiss Emissions During Cassini's Grand Finale: Diverse Electrodynamic Interactions Between Saturn and Its Rings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F18%3A00489262" target="_blank" >RIV/68378289:_____/18:00489262 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1029/2018GL077875" target="_blank" >http://dx.doi.org/10.1029/2018GL077875</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1029/2018GL077875" target="_blank" >10.1029/2018GL077875</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Auroral Hiss Emissions During Cassini's Grand Finale: Diverse Electrodynamic Interactions Between Saturn and Its Rings

Popis výsledku v původním jazyce

The Cassini Grand Finale orbits offered a new view of Saturn and its environment owing to multiple orbits of unprecedented proximity to the planet and high inclination. The Radio and Plasma Wave Science instrument detected striking signatures of plasma waves in the southern hemisphere. These all propagate in the whistler mode and are classified as: 1) A filled funnel‐shaped emission, commonly known as auroral hiss. Here however, our analysis indicates they are likely associated with currents connected to the rings. 2) First observations of VLF saucers directly linked to the planet on field lines also connected to the rings. The latter observations are unique to low altitude orbits and their presence at the Earth and Saturn alike show that they are fundamental plasma waves in planetary ionospheres. Our results give an insight, from a unique perspective, into the dynamic and diverse nature of Saturn's environment.

Název v anglickém jazyce

Auroral Hiss Emissions During Cassini's Grand Finale: Diverse Electrodynamic Interactions Between Saturn and Its Rings

Popis výsledku anglicky

The Cassini Grand Finale orbits offered a new view of Saturn and its environment owing to multiple orbits of unprecedented proximity to the planet and high inclination. The Radio and Plasma Wave Science instrument detected striking signatures of plasma waves in the southern hemisphere. These all propagate in the whistler mode and are classified as: 1) A filled funnel‐shaped emission, commonly known as auroral hiss. Here however, our analysis indicates they are likely associated with currents connected to the rings. 2) First observations of VLF saucers directly linked to the planet on field lines also connected to the rings. The latter observations are unique to low altitude orbits and their presence at the Earth and Saturn alike show that they are fundamental plasma waves in planetary ionospheres. Our results give an insight, from a unique perspective, into the dynamic and diverse nature of Saturn's environment.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/GJ16-16050Y" target="_blank" >GJ16-16050Y: Plazmové vlny pozorované ve slunečním větru před planetárními rázovými vlnami</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Geophysical Research Letters

ISSN

0094-8276

e-ISSN

—

Svazek periodika

45

Číslo periodika v rámci svazku

14

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

6782-6789

Kód UT WoS článku

000442582100004

EID výsledku v databázi Scopus

2-s2.0-85052243914