A Two‐Spacecraft Study of Mars' Induced Magnetosphere's Response to Upstream Conditions

نویسندگان

چکیده

This is a two-spacecraft study, in which we investigate the effects of upstream solar wind conditions on Martian induced magnetosphere and upper ionosphere. We use Mars Express (MEX) magnetic field magnitude data together with interplanetary (IMF), density, velocity measurements from Atmosphere Volatile EvolutioN (MAVEN) mission, November 2014 to 2018. compare simultaneous observations (|B|IM) IMF (|B|IMF), examine variations ratio |B|IM/|B|IMF dynamic pressure, speed density. find that generally decreases increased pressure more structured interaction seen when comparing fields instantaneous IMF, where reductions relative at pile up boundary (MPB) are evident than strength itself, along enhancements immediate vicinity optical shadow Mars. interpret these results as evidence while indeed compressed strengths higher during periods high relatively larger amount flux threads region compared available unperturbed low intervals.

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ژورنال

عنوان ژورنال: Journal Of Geophysical Research: Space Physics

سال: 2022

ISSN: ['2169-9402', '2169-9380']

DOI: https://doi.org/10.1029/2021ja030227