By Topic

On a possible dust-plasma interaction at Mars

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
S. Barabash ; Swedish Inst. of Space Phys., Kiruna, Sweden ; R. Lundin

According to present theoretical models, material ejected from the Martian satellite Phobos due to meteoroid bombardment and tidal coupling can stay for a long time in circular orbits near the planet, forming a dust belt. The dust particles are moving through various plasma domains of the Martian magnetosphere and may undergo electrostatic disruption there, producing very fine motes in the range 0.005-0.1 μm which can stay positively charged for a time comparable with the orbital period. A negatively charged spacecraft will attract such particles and an ion spectrometer with wide enough mass range (1-108 amu/Q, where Q is the particle charge) may detect these grains. The model can explain observations made by the ASPERA mass spectrometer during the PHOBOS mission when signals in the mass channels 103-107 amu were detected inside the Martian magnetosphere. The evolution of a grain orbiting Mars is shown in a diagram of the particle size-particle potential. Such a diagram gives a qualitative picture of the grain interaction with the Martian plasma environment

Published in:

IEEE Transactions on Plasma Science  (Volume:22 ,  Issue: 2 )