Search Results - "Gruesbeck, J. R"

The Drivers of the Martian Bow Shock Location: A Statistical Analysis of Mars Atmosphere and Volatile EvolutioN and Mars Express Observations by Garnier, P., Jacquey, C., Gendre, X., Génot, V., Mazelle, C., Fang, X., Gruesbeck, J. R., Sánchez‐Cano, B., Halekas, J. S.

“…The Martian interaction with the solar wind leads to the formation of a bow shock upstream of the planet. The shock dynamics appear complex, due to the…”
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First results of the MAVEN magnetic field investigation by Connerney, J. E. P., Espley, J. R., DiBraccio, G. A., Gruesbeck, J. R., Oliversen, R. J., Mitchell, D. L., Halekas, J., Mazelle, C., Brain, D., Jakosky, B. M.

“…Two Mars Atmosphere and Volatile EvolutioN magnetic field sensors sample the ambient magnetic field at the outer edge of each solar array. We characterized…”
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Autocorrelation Study of Solar Wind Plasma and IMF Properties as Measured by the MAVEN Spacecraft by Marquette, Melissa L., Lillis, Robert J., Halekas, J. S., Luhmann, J. G., Gruesbeck, J. R., Espley, J. R.

“…It has long been a goal of the heliophysics community to understand solar wind variability at heliocentric distances other than 1 AU, especially at ∼1.5 AU due…”
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Transient Foreshock Structures Upstream of Mars: Implications of the Small Martian Bow Shock by Madanian, H., Omidi, N., Sibeck, D. G., Andersson, L., Ramstad, R., Xu, S., Gruesbeck, J. R., Schwartz, S. J., Frahm, R. A., Brain, D. A., Kajdic, P., Eparvier, F. G., Mitchell, D. L., Curry, S. M.

“…The typical subsolar stand‐off distance of Mars' bow shock is of the order of a solar wind ion convective gyroradius, making it highly non‐planar to incident…”
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Martian magnetic storms by Luhmann, J. G., Dong, C. F., Ma, Y. J., Curry, S. M., Xu, S., Lee, C. O., Hara, T., Halekas, J., Li, Y., Gruesbeck, J. R., Espley, J., Brain, D. A., Russell, C. T., Jakosky, B. M.

“…The response of Mars to the major space weather events called interplanetary coronal mass ejections (ICMEs) is of interest for both general planetary solar…”
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CHARGE STATE EVOLUTION IN THE SOLAR WIND. II. PLASMA CHARGE STATE COMPOSITION IN THE INNER CORONA AND ACCELERATING FAST SOLAR WIND by LANDI, E, GRUESBECK, J. R, LEPRI, S. T, ZURBUCHEN, T. H, FISK, L. A

“…In the present work, we calculate the evolution of the charge state distribution within the fast solar wind. We use the temperature, density, and velocity…”
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A Global Two-temperature Corona and Inner Heliosphere Model: A Comprehensive Validation Study by Jin, M, Manchester, W. B, van der Holst, B, Gruesbeck, J. R, Frazin, R. A, Landi, E, Vasquez, A. M, Lamy, P. L, Llebaria, A, Fedorov, A, Toth, G, Gombosi, T. I

“…The recent solar minimum with very low activity provides us a unique opportunity for validating solar wind models. During CR2077, the number of sunspots was…”
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Solar cycle–dependent helicity transport by magnetic clouds by Lynch, B. J., Gruesbeck, J. R., Zurbuchen, T. H., Antiochos, S. K.

“…Magnetic clouds observed with the Wind and ACE spacecraft are fit with the static, linear force‐free cylinder model to obtain estimates of the chirality,…”
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A Generalized Magnetospheric Disturbance Index: Initial Application to Mars Using MAVEN Observations by Gruesbeck, J. R., Espley, J. R., Lee, C. O., Curry, S. M.

“…Since MAVEN's arrival at Mars in 2014, in situ observations of the magnetic field have been made continually. During this time, the Martian magnetosphere has…”
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Variability of Upstream Proton Cyclotron Wave Properties and Occurrence at Mars Observed by MAVEN by Romeo, O. M., Romanelli, N., Espley, J. R., Mazelle, C., DiBraccio, G. A., Gruesbeck, J. R., Halekas, J. S.

“…The presence of plasma waves upstream from the Martian bow shock, with frequencies near the local proton cyclotron frequency in the spacecraft frame,…”
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The Influence of Crustal Magnetic Fields on the Martian Bow Shock Location: A Statistical Analysis of MAVEN and Mars Express Observations by Garnier, P., Jacquey, C., Gendre, X., Génot, V., Mazelle, C., Fang, X., Gruesbeck, J. R., Sánchez‐Cano, B., Halekas, J. S.

“…Previous missions underlined the complex influence of the crustal magnetic fields on the Martian environment, including the plasma boundaries. Their influence…”
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Switchback Boundary Dissipation and Relative Age by Farrell, W. M., Rasca, A. P., MacDowall, R. J., Gruesbeck, J. R., Bale, S. D., Kasper, J. C.

“…We examine Parker Solar Probe (PSP) magnetic field and plasma observations during its first encounter with the Sun in early 2018 November. During this…”
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The Modulation of Solar Wind Hydrogen Deposition in the Martian Atmosphere by Foreshock Phenomena by Fowler, C. M., Halekas, J., Schwartz, S., Goodrich, K. A., Gruesbeck, J. R., Benna, M.

“…The neutral exosphere of Mars extends far upstream beyond the bow shock, and as a result, solar wind protons can charge exchange with this neutral exosphere to…”
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CARBON IONIZATION STAGES AS A DIAGNOSTIC OF THE SOLAR WIND by Landi, E., Alexander, R. L., Gruesbeck, J. R., Gilbert, J. A., Lepri, S. T., Manchester, W. B., Zurbuchen, T. H.

“…Oxygen charge states measured by in situ instrumentation have long been used as a powerful diagnostic of the solar corona and to discriminate between different…”
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The Martian Ionospheric Response to the Co-Rotating Interaction Region That Caused the Disappearing Solar Wind Event at Mars by Shaver, S. R., Solt, L., Andersson, L., Halekas, J., Jian, L., Silva, D. E. da, Jolitz, R., Malaspina, D., Fowler, C. M., Ramstad, R., Lillis, R., Xu, S., Azari, A. R., Mazelle, C., Rahmati, A., Lee, C. O., Hesse, T., Hamil, O., Pilinski, M., Brain, D., Garnier, P., Cravens, T. E., McFadden, J. P., Hanley, K. G., Mitchell, D. L., Espley, J. R., Gruesbeck, J. R., Larson, D., Curry, S.

“…An unusually low density solar wind event was observed in December 2022 moving past both Earth and Mars. The source was traced back to a coronal hole and…”
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NEW SOLAR WIND DIAGNOSTIC USING BOTH IN SITU AND SPECTROSCOPIC MEASUREMENTS by Landi, E, Gruesbeck, J R, Lepri, S T, Zurbuchen, T H

“…We develop a new diagnostic technique that utilizes, at the same time, two completely different types of observations-in situ determinations of solar wind…”
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NEW SOLAR WIND DIAGNOSTIC USING BOTH IN SITU AND SPECTROSCOPIC MEASUREMENTS by LANDI, E, GRUESBECK, J. R, LEPRI, S. T, ZURBUCHEN, T. H

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Will we find Martian lightning via Schumann resonances? by Esman, T. M., Espley, J. R., Gruesbeck, J. R., Verbiscer, A., Giacalone, J., Halford, A. J.

“…Schumann resonances are electromagnetic resonances generally associated with lightning. If they exist on Mars, Schumann resonances are expected to resonate…”
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Transient Foreshock Structures Upstream of Mars: Implications of the Small Martian Bow Shock by Madanian, H, Omidi, N, Sibeck, D. G, Andersson, L, Ramstad, R, Xu, S, Gruesbeck, J. R, Schwartz, S. J, Frahm, R. A, Brain, D. A, Kajdic, P, Eparvier, F. G, Mitchell, D. L, Curry, S. M

“…Geophysical Research Letters Volume 50, Issue8 28 April 2023 e2022GL101734 We characterize the nature of magnetic structures in the foreshock region of Mars…”
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The dependence of Martian ion escape on solar EUV irradiance as observed by MAVEN by Dong, Y., Brain, D.A., Ramstad, R., Fang, X., McFadden, J.P., Halekas, J.S., Eparvier, F., Espley, J.R., Gruesbeck, J.R., Jakosky, B.M.

“…We analyze the planetary ion, solar wind, interplanetary magnetic field (IMF), and solar extreme ultraviolet (EUV) irradiance data from the NASA Mars…”
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