Space Physics Seminar

semester, 2016


Saturday, January 16th 2016
12:00 pm:
Speaker: Aaron Breneman, University of Minnesota
Subject: Global coherence of hiss and electron precipitation

Tuesday, January 19th 2016
12:00 pm:
Organizational Meeting

Tuesday, January 26th 2016
12:00 pm:
Subject: Interesting new results from the group

Tuesday, February 2nd 2016
12:00 pm:
Speaker: Yan Song, University of Minnesota
Subject: Generation of Alfvenic Quasi-Stationary Double Layers and Charge Holes and Formation of Quasi-Static and Alfvenic Discrete Auroras

Tuesday, February 9th 2016
12:00 pm:
Speaker: Jasper Halekas, University of Iowa
Subject: Dynamic Mars: First Results from MAVEN

Tuesday, February 16th 2016
12:00 pm:
Speaker: Aaron Breneman, University of Minnesota
Subject: Global coherence of hiss and electron precipitation

Tuesday, February 23rd 2016
12:00 pm:
There will be no seminar this week so that the group can attend the MIFA Colloquium.

Tuesday, March 1st 2016
12:00 pm:
Speaker: Scott Thaller, University of Minnesota
Subject: Plasmapause dynamics during geomagnetic storms; a synoptic look

Tuesday, March 8th 2016
12:00 pm:
There will be no seminar this week so that the group can attend David Brain's colloquium.

Tuesday, March 15th 2016
12:00 pm:
There will be no seminar this week, spring break.

Tuesday, March 22nd 2016
12:00 pm:
There will be no Space Physics Seminar this week.

Tuesday, March 29th 2016
12:00 pm:
There will be no seminar this week.

Tuesday, April 5th 2016
12:00 pm:
There will be no seminar this week.

Tuesday, April 12th 2016
12:00 pm:
There will be no seminar this week.

Tuesday, April 19th 2016
12:00 pm:
Speaker: Charles McEachern, University of Minnesota
Subject: PC4 Models

Tuesday, April 26th 2016
12:00 pm:
Speaker: Brian Welsch, UW Green Bay
Subject: Effects of Global and Local Magnetic Structure in Flares and CMEs

Processes at work in the initiation and subsequent evolution of solar
flares and coronal mass ejections (CMEs) remain poorly understood.
Improved understanding of such processes could improve Space Weather
forecasts. Here, I will present results from three recent
observational studies of these phenomena. The first study, an
undergrad research project, focused on the relationship between the
emergence of new active regions and the occurrence of flares in
pre-existing active regions (PEARs). Comparing NOAA Solar Region
Summary reports, which record characteristics of active regions
present on the solar disk, with records from NOAA's GOES flare
catalog, we found that the emergence of new active regions is
associated with increased rates of flaring in PEARs. The second
study, also an undergrad research project, aimed to characterize the
relative importance of two factors that had previously been found to
be correlated with CME speeds: (i) the amount of magnetic flux "swept"
out by flare ribbons observed in chromospheric / transition region
spectral lines, conventionally taken to measure the amount of coronal
magnetic flux that reconnected in a flare/CME; and (ii) the rate of
decay, with height, of magnetic field strengths above CME source
regions, estimated from potential models of the coronal magnetic
field. Finally, given sufficient time, I will discuss preliminary
results from an in-progress attempt to replicate the previously
reported correlation of ribbon fluxes versus CME speeds.


Tuesday, May 3rd 2016
12:00 pm:
Speaker: Evan Tyler, University of Minnesota
Subject: Partitioning of Energy Flow from Reconnection

Thursday, September 8th 2016
12:20 pm:
Space Physics Seminar in 115 Ford Hall 
Organizational Meeting

Tuesday, September 13th 2016
12:20 pm:
Space Physics Seminar in 110 Ford Hall 
There will be no seminar this week.

Tuesday, September 20th 2016
09:30 am:
Speaker: Dr. Andreas Keiling, Space Science Lab, UCB
Subject: Art & Aurora
Note change of time and location from previous announcement. The seminar will be in this location at this time for the remainder of the semester.

Tuesday, September 27th 2016
09:30 am:
Speaker: Scott Thaller, University of Minnesota
Subject: A review of plasma thrusters

Tuesday, October 4th 2016
09:30 am:
Speaker: Trevor Knuth and Julie Vievering, University of Minnesota
Subject: EXACT: The Experiment for X-ray Characterization and Timing CubeSat

Tuesday, October 11th 2016
09:30 am:
There will be no seminar this week.

Tuesday, October 18th 2016
09:30 am:
Speaker: Xiaochen Shen, HAO, National Center for Atmosphere Research, Boulder
Subject: Effects of solar wind positive and negative dynamic pressure impulses on magnetospheric Pc5 ULF wave characteristics

Tuesday, October 25th 2016
09:30 am:
Subject: Informal group discussion of potential solar/magnetosphere collaborations

Tuesday, November 1st 2016
09:30 am:
Speaker: Sheng Tian, University of Minnesota
Subject: Van Allen Probe Observation of the Large Poynting Flux in the Plasma Sheet Boundary Layer

Tuesday, November 8th 2016
09:30 am:
Speaker: Aaron Breneman, University of Minnesota
Subject: Evidence for Direct one-one correspondence of chorus wave packets and microbursts: Van Allen Probe EFW and FIREBIRD 2

Tuesday, November 15th 2016
09:30 am:
Speaker: Cynthia Cattell, University of Minnesota
Subject: Response of the magnetosphere to a small interplanetary shock compression: Van Allen Probes, Magnetospheric MultiScale, GOES, and THEMIS

Tuesday, November 22nd 2016
09:30 am:
Speaker: P. Subramania Athiray,
Subject: New views of the Moon in X-rays - Indian scenario

Lunar missions over the last decade have revealed the complexity of the lunar crust and the near surface environment of the Moon. Space based remote sensing measurements provide vital clues to understand the global evolution of the Moon by mapping the distribution of elements and minerals on the lunar surface in
multi-wavelengths. The surface chemistry of the Moon can be well explored in
X-rays using the X-ray Fluorescence (XRF) technique. Observational evidences help to test models of lunar evolution from the formation to the chemical
diversity of the Moon. Indian lunar space missions (Chandrayaan-1, 2) have
their modest contributions to th is field and ambitious plans for the future. The X-ray spectrometer (C1XS) on-board Chandrayaan-1 was designed to map the
global abundances of rock-forming elements (Mg, Al, Si, Ca, Ti and Fe) over
the lunar surface. C1XS observations revealed the evidence of enhanced Na abundances for the first time, from differentparts of the Moon. In this talk I
will present an overview of C1XS instrument, its observations and highlight the
results. Further, I will also show how the lessons learned from C1XS are transformed into the design and development of the upcoming X-ray instrument: CLASS for the second Indian Moon mission Chandrayaan-2.


Tuesday, November 29th 2016
09:30 am:
Speaker: John Wygant and Viacheslav Pilipenko, (Augsburg College)
Subject: The MPEX satellite mission and Informal discussion on Sudden Impulse and SSC signatures in ground magnetometers

Tuesday, December 6th 2016
09:30 am:
Practice talks for AGI

Tuesday, December 13th 2016
09:30 am:
There will be no seminar this week.

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