Enceladus auroral hiss observations: Implications for electron beam locations

Whistler-Langmuir oscillitons and their relation to auroral hiss

A new type of oscilliton (soliton with superimposed spatial oscillations) is described which arises in plasmas if the electron cyclotron frequency e is larger than the electron plasma frequency ωe, which is a typical situation for auroral regions in planetary magnetospheres. Both highfrequency modes of concern, the Langmuir and the whistler wave, are completely decoupled if they propagate para...

Enceladus: Cassini observations and implications for the search for life (Research Note)

Aims. The recent Cassini discovery of water vapor plumes ejected from the south pole of the Saturnian satellite, Enceladus, presents a unique window of opportunity for the detection of extant life in our solar system. Methods. With its significant geothermal energy source propelling these plumes >80 km from the surface of the moon and the ensuing large temperature gradient with the surrounding ...

Observations of Auroral Plasma Lines

First VHF auroral radarinterferometer observations

The radar interferometer technique on two separate antennas. The coherence first used at the magnetic equator in Peru is (amplitude) of the cross spectrum at each also a very powerful means for studying auroral frequency is a measure of how localized the plasma instabilities. We present here the first scattering target corresponding to that results, obtained with a 49.92 MHz, 20-25 KW peak part...

Wilson Bentley’s Auroral Observations S

Wilson Bentley’s aurora1 observations in northern Vermont were made over the period from 1883 to 1931, thus encompassing the solar activity minimum at the beginning of the twentieth century. Long term series of aurora1 observations by a single observer in a region of reasonable frequency of occurrence are rare, and are important for the study of solar-terrestrial relationships. Bentley’s data h...