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Magnetosphere Seminars – Fall 2010

Magnetosphere Seminars

Magnetosphere Seminars, aimed at scientists in the Boulder area, explore space physics and plasma research. (Courtesy Steele Hill/NASA)

Below is a schedule of the informal LASP Magnetospheres Seminars for the Fall Semester 2010. Except where noted, seminars will be held on Tuesday afternoons in room LSTB-206 at 3:30 pm.

LASP holds a series of informal seminars focused on space physics and plasma research relating to the magnetospheres of Earth and other planets. The intended audience is space and planetary physics researchers in the Boulder area, although in most instances any interested persons are welcome to attend.

For more information or if you have questions, please contact Stefan Eriksson at firstname.lastname@lasp.colorado.edu.



Fall 2010

August 24, 2010 Direct driving of magnetospheric ULF waves by the solar wind
Speaker: Scot Elkington (LASP)
Time: 3:30-4:30PM
Location: LSTB-206
Abstract: No abstract available
August 31, 2010 Constraints on Io’s neutral atmosphere from six Galileo flybys: A chemical modeling of the Io-Torus interaction
Speaker: Vincent Dols (LASP)
Time: 3:30-4:30PM
Location: LSTB-206
Abstract: Our understanding of Io’s neutral atmosphere has improved tremendously in the last three decades thanks to multi-wavelength and high spatial resolution observations of the atmospheric emissions and absorptions. Nevertheless, uncertainties persist about the vertical column density, radial distribution and abundances of non-SO2 species. Clues about the structure of the outer layers can also be derived from plasma observations close to Io: When the Torus plasma encounters the neutral atmosphere, ionization and charge-exchange will change its density and temperature. We model the atmosphere/torus interaction with a multi-species chemical model and compare the results withthe plasma observations along 6 Galileo flybys of Io to constrain its outer atmosphere.
September 7, 2010 Evolutions of Flux Transfer Events (FTEs): Qualitative Force-Balance Model
Speaker: Wai-Leong Teh (LASP)
Time: 3:30-4:30PM
Location: LSTB-206
Abstract: Recently Zhang et al. [2010] argue that crater-FTEs (C-FTEs) are initial stage of typical-FTEs (T-FTEs) and propose that the thermal pressure at the center of C-FTEs is reduced by the parallel flows as the central field strength increases to maintain the pressure balance. In this talk, I present a simple force-balance model to describe the evolutions of FTEs, instead of the pressure balance. The model can explain the THEMIS observations that there are less FTE in C-FTE than in T-FTE. Also, the model shows that C-FTEs are not necessarily initial stage of T-FTEs. Some interesting results from the model are discussed.
September 14, 2010 Oxygen in the magnetosphere: What role does it play in the formation of geomagnetic storms?
Speaker: Bill Peterson (LASP)
Time: 3:30-4:30PM
Location: LSTB-206
Abstract: No abstract available
September 21, 2010 Examining a proxy for EMIC waves based on source particle distributions
Speaker: Lauren Blum (LASP)
Time: 3:30-4:30PM
Location: LSTB-206
Abstract: No abstract available
September 28, 2010 Rescheduled for 11-23-2010 – Radiation belt electron response to CME- and CIR-driven geomagnetic storms
Speaker: Mary Hudson (Dartmouth College)
Time: 3:30-4:30PM
Location: LSTB-206
Abstract: No abstract available
October 5, 2010 Adiabatic effects on storm time radiation belt electron fluxes at low Earth orbit
Speaker: Weichao Tu (LASP)
Time: 3:30-4:30PM
Location: LSTB-206
Abstract: No abstract available
October 12, 2010 Buneman instability in a magnetized current-carrying plasma with velocity shear
Speaker: Haihong Che (CU/CIPS)
Time: 3:30-4:30PM
Location: LSTB-206
Abstract: No abstract available
October 20, 2010 (Wednesday) What DMSP data reveal about M-I coupling during intervals of strong IMF By
Speaker: Delores Knipp (HAO)
Time: 3:30-4:30PM
Location: LSTB-206
Abstract: No abstract available
October 26, 2010 Formation and eruption of coronal flux ropes and torsional Alfven waves
Speaker: Yuhong Fan (HAO)
Time: 3:30-4:30PM
Location: LSTB-206
Abstract: No abstract available
November 2, 2010 Results from the first lunar-wake flyby of ARTEMIS on wake potential, electron beams and electrostatic waves
Speaker: Jianbao Tao (LASP)
Time: 3:30-4:30PM
Location: LSTB-206
Abstract: No abstract available
November 9, 2010 A Global View of O+ Upward Flows and Outflow Rates During Non-Storm Times
Speaker: Rob Redmon (NOAA/LASP)
Time: 3:30-4:30PM
Location: LSTB-206
Abstract: No abstract available
November 16, 2010 The Kelvin-Helmholtz instability in Saturn’s outer magnetosphere
Speaker: Peter Delamere (LASP)
Time: 3:30-4:30PM
Location: LSTB-206
Abstract: No abstract available
November 23, 2010 Radiation belt electron response to CME- and CIR-driven geomagnetic storms
Speaker: Mary Hudson (Dartmouth College)
Time: 3:30-4:30PM
Location: LSTB-206
Abstract: No abstract available
November 30, 2010 What causes sawtooth oscillations in magnetospheric convection?
Speaker: William Lotko (Dartmouth College)
Time: 3:30-4:30PM
Location: LSTB-206
Abstract: No abstract available

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