@article{53ddb807de104716bd2f4e0b5ad47eae,
title = "Debye-scale Solitary Structures in the Martian Magnetosheath",
abstract = "We present an analysis of 450 solitary wave pulses observed by the Langmuir Probe and Waves instrument on the Mars Atmosphere and Volatile EvolutioN spacecraft during its five passes around Mars on 2015 February 9. The magnitude and duration of these pulses vary between 1 and 25 mV m−1 and 0.2-1.7 ms, respectively. The ambient plasma conditions suggest that these pulses are quasi-parallel to the ambient magnetic field and can be considered electrostatic. These pulses are dominantly seen in the dawn (5-6 LT) and afternoon-dusk (15-18 LT) sectors at an altitude of 1000-3500 km. The frequencies of these electric field pulses are close to the ion plasma frequency (i.e., f pi ≤ f ef ≪ f pe), which suggests that their formation is governed by ion dynamics. The computer simulation performed for the Martian magnetosheath plasma hints that these pulses are ion-acoustic solitary waves generated by drifted ion and electron populations and their spatial scales are in the range of few ion Debye lengths (1.65-10λ di). This is the first study to report and model solitary wave structures in the Martian magnetosheath.",
author = "Bharati Kakad and Amar Kakad and Harikrishnan Aravindakshan and Ioannis Kourakis",
note = "Funding Information: All calibrated data used in the present study is available on the Planetary Data System at ( https://pds-ppi.igpp.ucla.edu/ ). The authors are thankful to L. Andersson for the LPW/MAVEN data and the assistance provided to understand the electric field data. Authors thank J.E.P. Connerney for providing access to MAG/MAVEN data, D.L. Mitchell for SWEA/MAVEN data, J.S. Halekas for SWIA/MAVEN data, and P.A. Dunn for key parameters. I.K. and A.K. gratefully acknowledge financial support from project FSU-2021-012/8474000352, funded by Khalifa University of Science and Technology, Abu Dhabi, UAE. Authors I.K. and H.A. also gratefully acknowledge support from the Abu Dhabi Department of Education and Knowledge (ADEK), currently ASPIRE UAE, via an Abu Dhabi Award for Research Excellence (AARE-2018, grant ADEK/HE/157/18). The hospitality offered by Khalifa University to A.K. and to H.A. during their research visit in 2021 and in 2022 is greatly appreciated. I.K. gratefully acknowledges financial support from Khalifa University{\textquoteright}s Space and Planetary Science Center under grant No. KU-SPSC-8474000336. The model computations were performed on the High Performance Computing System at the Indian Institute of Geomagnetism. Publisher Copyright: {\textcopyright} 2022. The Author(s). Published by the American Astronomical Society.",
year = "2022",
month = aug,
day = "1",
doi = "10.3847/1538-4357/ac7b8b",
language = "British English",
volume = "934",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "American Astronomical Society",
number = "2",
}