Events Archive

Events Archive

Heliophysics Seminar, Prof. Paul Cassak

Heliophysics Seminar, Prof. Paul Cassak
Mon, Aug 2, 2021, 3:00 pm

Using kinetic entropy to study energy conversion and dissipation in space plasmas

Speaker(s):
Prof. Paul Cassak
University of West Virginia
Using kinetic entropy to study energy conversion and dissipation in space plasmas

Heliophysics Seminar, Dr. Eun-Hwa Kim

Heliophysics Seminar, Dr. Eun-Hwa Kim
Mon, Jul 19, 2021, 3:00 pm

 

Can electromagnetic ion cyclotron waves propagate to the ground? 2D Full-wave simulations

Speaker(s):
Dr. Eun-Hwa Kim
PPPL
Can electromagnetic ion cyclotron waves propagate to the ground? 2D Full-wave simulations

Heliophysics Seminar, Prof. Anna Tenerani

Heliophysics Seminar, Prof. Anna Tenerani
Mon, Jul 12, 2021, 3:00 pm

Alfvénic turbulence in the solar wind: An overview

Speaker(s):
Prof. Anna Tenerani
University of Texas, Austin
Alfvénic turbulence in the solar wind: An overview

Heliophysics Seminar, Dr. Emily Mason

Heliophysics Seminar, Dr. Emily Mason
Mon, Apr 26, 2021, 3:00 pm

Coronal mass ejections, jets, prominence eruptions: solar eruptions are an active field with a broad range of accepted phenomena, and an even broader range of proposed mechanisms that cause the phenomena. This talk reports the observations of an event that connects the major eruption classes, and could provide a holistic explanation for all of...

Speaker(s):
Dr. Emily Mason
NASA Goddard
Trigger Shy? A “Rosetta-Stone” Solar Eruption

Heliophysics Seminar, Dr. Yuxi Chen

Heliophysics Seminar, Dr. Yuxi Chen
Mon, Apr 19, 2021, 3:00 pm

It is challenging to capture kinetic phenomena in global simulations due to the significant difference between the kinetic scales and global scales. The magnetohydrodynamics with embedded particle-in-cell model (MHD-EPIC) is developed to incorporate kinetic physics into global simulations.

Speaker(s):
Dr. Yuxi Chen
University of Michigan
Magnetohydrodynamics with embedded particle-in-cell model (MHD-EPIC) and its applications

Heliophysics Seminar, Prof. Walter Gekelman

Heliophysics Seminar, Prof. Walter Gekelman
Fri, Apr 9, 2021, 2:00 pm

Magnetic flux ropes are bundles of twisted magnetic fields and their associated currents. They are common on the surface of the sun (and presumably all other stars) and are observed to have a large range of sizes and lifetimes. Two “kink” unstable ropes are generated in a background plasma in the Large Plasma Device at UCLA. When they collide...

Speaker(s):
Prof. Walter Gekelman
UCLA
Using topology to locate the position where fully three dimensional reconnection occurs

Heliophysics Seminar, Prof. Craig Kletzing

Heliophysics Seminar, Prof. Craig Kletzing
Fri, Apr 2, 2021, 2:00 pm

The TRACERS mission consists of two identically instrumented satellites in the same low-Earth, sun-synchronous orbit with the spacecraft separated by 10-120s along the orbital track. The mission was selected for implementation  in June, 2019 by NASA as a Small Explorer class investigation.

Speaker(s):
Prof. Craig Kletzing
University of Iowa
The Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites Mission

Heliophysics Seminar, Prof. Yi-Hsin Liu

Heliophysics Seminar, Prof. Yi-Hsin Liu
Fri, Mar 26, 2021, 2:00 pm

Speaker(s):
Prof. Yi-Hsin Liu
Dartmouth
Magnetic Reconnection Rate in Collisionless Plasmas

Heliophysics Seminar, Doug Endrizzi

Heliophysics Seminar, Doug Endrizzi
Fri, Mar 12, 2021, 2:00 pm

Whistler waves are a common feature of space plasmas, notably present upstream of shocklets, SLAMS, and switchbacks in the solar wind. In the laboratory, they have been studied for at least 60 years, being easily generated from RF antennas, electron beams, and in pulsed power experiments.

Speaker(s):
Doug Endrizzi
University of Wisconsin
Parallel shock experiments on the Big Red Ball: Understanding the role of non-linear whistler waves

Heliophysics Seminar, Prof. Lorin Matthews

Heliophysics Seminar, Prof. Lorin Matthews
Fri, Mar 5, 2021, 2:00 pm

The interaction of an object within a streaming fluid is a phenomenon widely encountered in physics, spanning a range of length scales, from the familiar meter- to cm-sized wakes observed behind rocks in flowing streams (Fig. 1a), the kilometers-long wakes observed in cloud patterns as air flows past ocean islands (Fig.

Speaker(s):
Prof. Lorin Matthews
Baylor University
Ion Wakes: Modeling Dust Plasma Interactions

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