[IGPP Everyone] TOMORROW: Space Physics seminar, EPSS Faculty Candidate - Fri. 4/1, 3:30 PM PST - The Shape of the Wind: Discovering Magnetic Topology Throughout the Heliosphere (P. Whittlesey, UCB SSL)

[Emmanuel V. Masongsong]

SPACE PHYSICS SEMINAR 




DEPARTMENT OF EARTH, PLANETARY, AND SPACE SCIENCES 

DEPARTMENT OF ATMOSPHERIC AND OCEANIC SCIENCES 
UNIVERSITY OF CALIFORNIA, LOS ANGELES 

ZOOM LINK PROVIDED BELOW 


https://ucla.zoom.us/j/98070654630?pwd=aWdrSktueG9xWjU3cDZiQUhGRXV0UT09 



The Shape of the Wind: Discovering Magnetic Topology Throughout the Heliosphere 

Phyllis Whittlesey 
UC Berkeley Space Sciences Lab 
https://www.ssl.berkeley.edu/science/groups/heliospheric-members/name/phyllis-whittlesey/ 
Plasma and energy transfer throughout the solar system is constrained and influenced by the magnetic structures, whether they originate from the sun, planetary magnetospheres, or interactions at the interfaces between the two. Studying the shape of the heliosphere and the magnetospheres within is one path to constrain the energy flow and transfer on all scales. By examining the magnetic alignment of strahl, or magnetic-field aligned, low-energy electrons within the solar wind, we can identify whether regions of solar wind and magnetospheric plasma are connected to the sun, magnetospheres, or both simultaneously. This talk will cover how recently launched missions, such as Parker Solar Probe in the inner heliosphere, as well as missions currently in development, such as ESCAPADE bound for Mars, are leveraging critical electron measurements of magnetic topology to characterize the flow and transfer of energy from their sources on the sun to smaller scales via features such as solar wind turbulence and magnetic switchbacks. Via comparison with heliospheric magnetic field modeling, the Parker Solar Probe / SPAN-E electron experiment is making definitive connections between large scale structures, such as the heliospheric current sheet and sources of fast and slow wind, with photospherically observable regions on the sun such as coronal holes and acceleration regions. In the future, the ESCAPADE e-EESA instruments will be able to identify the extent to which the solar wind is eroding the Martian atmosphere via interactions with its hybrid magnetosphere. Additionally, the recently selected HelioSwarm mission will host an entirely student-designed low-energy electron instrument that will definitively determine when this mission is within the pristine solar wind in order to study solar wind turbulence. The ability of these three missions to operate together in tandem and also with others as a topological observatory will be discussed. 


Friday, April 1st, 2022 

**In-person: Slichter Hall 3853** 
3:30 - 4:30 PM 
Social with refreshments afterwards, on Franz Patio 

In-Charge: Vassilis Angelopoulos 



Spring Space Physics Seminar schedule: 





Mar 30 Phyllis Whittlesey, UCB SSL 
The Shape of the Wind: Discovering Magnetic Topology Throughout the Heliosphere 


Apr 06 Ali Sulaiman, U Iowa 
The Gas Giants as Unique Laboratories for Space Plasma Processes 


Apr 13 Tibor Torok, PSI (REMOTE), 
Understanding and Modeling Solar Eruptions: Where Do We Stand? 


Apr 20 Enrico Camporeale, NOAA (REMOTE), 
Data-driven discovery of Fokker-Planck equation for the Earth's radiation belts electrons using Physics-Informed Neural Networks 


Apr 27 Artur Davoyan, UCLA Engineering 
Light sailing for breakthrough space exploration 


May 04 Frances Staples, UCLA AOS 
Radiation Belt Dynamics from a Particle Perspective 


May 11 Yangyang Shen, UCLA EPSS 
Contribution of kinetic Alfvén waves to energetic electron scattering and precipitation from plasma sheet injections 


May 18 Mike Hartinger, UCLA EPSS, SSI 
Inter-Hemispheric Comparisons of Mesoscale Current Systems through Expanded Antarctic Instrument Networks 


May 25 Man Hua, UCLA AOS 
Radiation belt electron dynamics driven by VLF transmitter waves in near-Earth space 


June 01 Adam Kellerman, UCLA AOS 
Modeling Earth's Radiation Belt Electrons on Shorter Time Scales 



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