Title:

Low-frequency Waves due to Newborn Interstellar Pickup He+ Observed by the Ulysses Spacecraft

Poster

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Abstract

We have surveyed magnetic field data from the Ulysses spacecraft and found examples of magnetic waves with the expected characteristics that point to excitation by newborn pickup He+. With interstellar neutrals as the likely source for the pickup ions, we have modeled the ion production rates and used them to produce wave excitation rates that we compare to the background turbulence rates. The source ions are thought to be always present, but the waves are seen when growth rates are comparable to or exceed the turbulence rates. With the exception of the fast latitude scans, and unlike the waves excited by newborn interstellar pickup H+, the waves are seen throughout the Ulysses orbit.

Authors

First Name Last Name
Anastasia Marchuk

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Submission Details

Conference URC
Event Interdisciplinary Science and Engineering (ISE)
Department Physics (ISE)
Group Theory, Modeling and Data Analysis
Added April 17, 2022, 11:58 a.m.
Updated April 17, 2022, 11:59 a.m.
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