Wednesday, September 25, 2024 - 3:10 p.m. to 4:10 p.m.
Morse Hall, rm 301
Speakers: Anastasia Marchuk, Chuck Smith, and Bernie Vasquez from the University of New Hampshire
Abstract: Pickup ions (PUIs) are a source of energy injection into solar wind dynamics far from planetary bodies that do not require transient behavior such as shocks. Their scattering produces low-frequency magnetic waves that add energy to the spectrum and lead to additional heating of the thermal plasma. There are multiple sources for PUIs, but we will focus primarily on the interstellar neutral atoms that cross the heliosphere as the Sun moves through interstellar space.
We have studied waves as recorded in the ACE, Voyager, Ulysses, and Juno data sets, but here we focus primarily on Ulysses observations. At the same time, our analyses lead to new insights into turbulent dynamics. We conclude with a description of high-frequency magnetic waves as we work to determine the most likely source(s).
Schedule: Check out the rest of this season's Space Science Seminar Series, as well as previous recordings.
Free snacks and refreshments.
