Výsledky vyhledávání - "Jacob Gruesbeck"

MAVEN Observations of Steepened Ultra-Low Frequency Waves in the Upstream Martian Foreshock Region

Autor: Gangkai Poh, Jared Espley, Shaosui Xu, Guan Le, Norberto Romanelli, Jasper Halekas, Gina DiBraccio, Jacob Gruesbeck

In this study, we present the analysis of steepened ultra-low frequency (ULF) waves in the foreshock region upstream of Mars’ bow shock observed by the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft at Mars. A survey of MAVEN magnetic fi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e53831df32fee7cbd8c796e8ce8f4e9e
https://doi.org/10.5194/egusphere-egu23-10536

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Martian Ionospheric Magnetic Fluctuations

Autor: Teresa Esman, Jared Espley, Jacob Gruesbeck, Christopher Fowler, Shaosui Xu, Meredith Elrod, Yuki Harada, Joe Giacalone, Alexa Halford, Anne Verbiscer

Understanding the properties and variability of the ionosphere is vital for understanding the atmosphere of Mars. The presence and property of waves provide insight into the plasma and magnetic environment. We conducted a search for 5 - 16 Hz signals

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::88c3b0ab2996f716abc7109103af0487
https://doi.org/10.5194/egusphere-egu23-10622

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Ranking the drivers of the Martian bow shock location: a statistical analysis of Mars Atmosphere and Volatile EvolutioN and Mars Express observations

Autor: Philippe Garnier, Christian Jacquey, Xavier Gendre, Vincent Génot, Christian Mazelle, Xiaohua Fang, Jacob Gruesbeck, Beatriz Sanchez-Cano, Jasper Halekas

The Martian interaction with the solar wind leads to the formation of a bow shock upstream of the planet. The shock dynamics appears complex, due to the combined influence of external (solar photons, solar wind plasma and fields) and internal (crusta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4fa6aa4470cad7dfb1f66a03302c4326
https://doi.org/10.5194/egusphere-egu22-1609

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On the Growth and Development of Non-linear Kelvin-Helmholtz Instability at Mars: MAVEN Observations

Autor: Gangkai Poh, Jared Espley, Katariina Nykyri, Christopher Fowler, Xuanye Ma, Shaosui Xu, Gwen Hanley, Norberto Romanelli, Charles Bowers, Jacob Gruesbeck, Gina DiBraccio

We analyzed MAVEN observations of fields and plasma signatures associated with an encounter of fully-developed Kelvin–Helmholtz (K–H) vortices at the northern polar terminator along Mars’ induced magnetosphere boundary. The signatures of the K�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::889f7d38a4d710e7aa596bfbc4ab2144
https://doi.org/10.5194/egusphere-egu22-169

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A Fast Bow Shock Location Predictor-Estimator From 2D and 3D Analytical Models: Application to Mars and the MAVEN Mission

Autor: Christian Mazelle, Jasper Halekas, Arnaud Beth, Christian Moestl, Cyril Simon Wedlund, Diana Rojas-Castillo, Martin Volwerk, Jacob Gruesbeck

Publikováno v: Journal of Geophysical Research: Space Physics
Journal of Geophysical Research: Space Physics, 2022, 127, ⟨10.1029/2021JA029942⟩

We present fast algorithms to automatically estimate the statistical position of the bow shock from spacecraft data, using existing analytical two-dimensional (2D) and three-dimensional (3D) models of the shock surface. We derive expressions of the s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45a91e0fa88352c08e7a76ebd3b3021c
https://hal-insu.archives-ouvertes.fr/insu-03672058/document

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Dynamics of the Martian bow shock location

Autor: Xiaohua Fang, Jasper Halekas, Christian Jacquey, Vincent Génot, Jacob Gruesbeck, Philippe Garnier, Beatriz Sánchez-Cano, Christian Mazelle, Bruce M. Jakosky, Xavier Gendre, B. E. S. Hall

The Martian interaction with the solar wind is unique due to the influence of multiple internal and external drivers, including remanent crustal magnetic fields that make the interaction unique. In this work we focus on the analysis of the dynamics o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7f8c57cb2349933d2e571a6074c59113
https://doi.org/10.5194/egusphere-egu21-9157

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Observations of Energized Electrons in the Martian Magnetosheath

Autor: Jacob Gruesbeck, Steven J. Schwartz, Jasper Halekas, Konstantinos Horaites, D. L. Mitchell, Laila Andersson, Shaosui Xu, C. Mazelle

Publikováno v: Journal of Geophysical Research: Space Physics
Journal of Geophysical Research: Space Physics, 2021, 126, ⟨10.1029/2020JA028984⟩

This observational study demonstrates that the magnitude and location of energization of electrons in the Martian magnetosheath is more complex than previous studies suggest. Electrons in Mars's magnetosheath originate in the solar wind and are accel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4835cbf275961a88e581f3c838bbca8
https://hal-insu.archives-ouvertes.fr/insu-03672444

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The influence of crustal magnetic fields on the Martian bow shock : a statistical analysis of Mars Volatile EvolutioN and Mars Express observations

Autor: Vincent Génot, Xiaohua Fang, K. Masunaga, Bruce M. Jakosky, B. E. S. Hall, Jasper Halekas, Jared Espley, Christian Mazelle, Christian Jacquey, Emmanuel Penou, Jacob Gruesbeck, Philippe Garnier

The Martian interaction with the solar wind is unique due to the influence of remanent crustal magnetic fields. The recent studies by the Mars Express and Mars Atmosphere and Volatile Evolution missions underline the strong and complex influence of t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::91e78a0f7cebb5073dbff4da90031993
https://doi.org/10.5194/epsc2020-819

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