Astrophysics & Space Physics Seminar - Mitchell Shen; Department of Astrophysical Sciences, Princeton University

Astrophysics & Space Physics Seminar - Mitchell Shen; Department of Astrophysical Sciences, Princeton University promotional image

Dust detection using Antenna Instruments in Space, Lab, and Modeling Perspectives

Mitchell Shen

Electric field instruments on spacecraft complement dedicated dust detectors by registering transient voltage perturbations caused by impact-generated plasma. The signal waveform contains information about the interaction between the impact-generated plasma cloud, ambient plasma environment, and the elements of SC-antenna system. In this talk, we will i) review the dust impact measurements performed by various space missions (e.g., Voyager, Wind, Cassini, STEREO, Juno, MAVEN, MMS, PSP, SolO, etc.); ii) present recent updates of laboratory measurements; and introduce iii) the extended electrostatic model we proposed. These perspectives provide a comprehensive understanding of dust detection through plasma wave instruments, bridging observations, experiments, and theoretical modeling.

To participate in this event virtually via Zoom, go to https://uiowa.zoom.us/j/6449961139?omn=92272194517

Tuesday, March 25, 2025 10:30am to 11:20am
Van Allen Hall
309
30 North Dubuque Street, Iowa City, IA 52242
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Individuals with disabilities are encouraged to attend all University of Iowa–sponsored events. If you are a person with a disability who requires a reasonable accommodation in order to participate in this program, please contact Department of Physics & Astronomy in advance at 319-335-1686 or physics-astronomy@uiowa.edu.