The influence of crustal magnetic fields on the composition of the nightside ionosphere of Mars

Zachary Girazian1, Paul R Mahaffy2, Mehdi Benna3, Dr. Meredith K Elrod4, Yingjuan Ma5, Janet G Luhmann6 and Joseph M Grebowsky1, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)NASA Goddard Space Flight Center, Greenbelt, United States, (3)University of Maryland Baltimore County, Baltimore, United States, (4)University of Maryland College Park, Astronomy Department, College Park, United States, (5)University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, United States, (6)Space Sciences Laboratory, University of California Berkeley, Berkeley, United States