Modeling the response of the induced magnetosphere of Venus to changing IMF direction using MESSENGER and Venus Express observations

Details Modeling the response of the induced magnetosphere of Venus to changing IMF direction using MESSENGER and Venus Express observations Modeling the response of the induced magnetosphere of Venus to changing IMF direction using MESSENGER and Venus Express observations

Feb 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3604109b&link_type=abstract

Geophysical Research Letters, Volume 36, Issue 4, CiteID L04109

Physics

2

Magnetospheric Physics: Numerical Modeling, Planetary Sciences: Solar System Objects: Venus, Magnetospheric Physics: Magnetopause And Boundary Layers, Magnetospheric Physics: Magnetospheric Configuration And Dynamics, Magnetospheric Physics: Magnetotail Boundary Layers

Scientific paper

The second MESSENGER flyby of Venus on 5 June 2007 provided a new opportunity to study the response of the induced magnetosphere of the planet to changes in the direction of the interplanetary magnetic field (IMF). At the time of the MESSENGER flyby, the European Space Agency's Venus Express spacecraft was located outside the magnetosphere and provided a monitor of solar wind conditions. Measurements by the Venus Express magnetometer show that the IMF underwent four major changes in direction and magnitude while MESSENGER was traveling through the inner magnetosphere of Venus. The response of the magnetosphere to each of these IMF changes was determined with a semi-time-dependant global magnetohydrodynamic (MHD) model, and the results were compared with magnetic and compositional measurements by the Magnetometer (MAG) and the Energetic Particle and Plasma Spectrometer (EPPS) on MESSENGER. Our modeling results show that this semi-time-dependant MHD technique produces magnetic field profiles that can account for both of the field reversals seen by MAG and the peak in the pick-up ion density measured by EPPS. Moreover, these results reveal that the plasma sheet that confines most of the pick-up ions has a barred disk shape and continuously rotates along the Sun-planet axis to align its smallest dimension with the transverse direction of the IMF.

Affiliated with

Also associated with

No associations

Rating

Modeling the response of the induced magnetosphere of Venus to changing IMF direction using MESSENGER and Venus Express observations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Modeling the response of the induced magnetosphere of Venus to changing IMF direction using MESSENGER and Venus Express observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modeling the response of the induced magnetosphere of Venus to changing IMF direction using MESSENGER and Venus Express observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-917393