Výsledky vyhledávání - "DiBraccio , Gina"

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The Incompressible Magnetohydrodynamic Energy Cascade Rate Upstream of Mars: Effects of the Total Energy and the Cross-Helicity on Solar Wind Turbulence

Autor: Romanelli, Norberto, Andres, Nahuel, DiBraccio, Gina, Verniero, Jaye, Gruesbeck, Jacob, Szabo, Adam, Espley, Jared, Halekas, Jasper

Solar wind turbulence is a dynamical phenomenon that evolves with heliocentric distance. Orbiting Mars since September 2014, Mars Atmosphere and Volatile EvolutioN (MAVEN) offers a unique opportunity to explore some of its main properties beyond ~1.3

Externí odkaz: http://arxiv.org/abs/2406.18349

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Alfv\'en Waves at Mars

Autor: Romanelli, Norberto, Fowler, Christopher M., DiBraccio, Gina A., Espley, Jared R., Halekas, Jasper S.

The solar wind upstream of Mars's bow shock can be described in terms of Alfv\'enic turbulence, with an incompressible energy cascade rate of $10^{-17}$ J m$^{-3}$ s$^{-1}$ at magnetohydrodynamics (MHD) scales. The solar wind has more Alfv\'en waves

Externí odkaz: http://arxiv.org/abs/2403.17304

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The case for studying other planetary magnetospheres and atmospheres in Heliophysics

Heliophysics is the field that "studies the nature of the Sun, and how it influences the very nature of space - and, in turn, the atmospheres of planetary bodies and the technology that exists there." However, NASA's Heliophysics Division tends to li

Externí odkaz: http://arxiv.org/abs/2308.11690

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Variability of the Incompressible Energy Cascade Rate in Solar Wind Turbulence Around Mars

Autor: Romanelli, Norberto, Andres, Nahuel, DiBraccio, Gina

We present a statistical analysis on the variability of the incompressible energy cascade rate in the solar wind around Mars, making use of an exact relation for fully developed turbulence and more than five years of Mars Atmosphere and Volatile Evol

Externí odkaz: http://arxiv.org/abs/2201.11772

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The Influence of Magnetic Field Topology and Orientation on the Distribution of Thermal Electrons in the Martian Magnetotail

Autor: Nauth, Murti, Fowler, Christopher M., Andersson, Laila, DiBraccio, Gina A., Xu, Shaosui, Weber, Tristan, Mitchell, David

Publikováno v: Journal of Geophysical Research: Space Physics, 126, e2020JA028130 (2021)

Thermal (<1 eV) electron density measurements, derived from the Mars Atmosphere and Volatile Evolution's (MAVEN) Langmuir Probe and Waves (LPW) instrument, are analyzed to produce the first statistical study of the thermal electron population in the

Externí odkaz: http://arxiv.org/abs/2103.10384

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Solar Wind Turbulence Around Mars: Relation Between The Energy Cascade Rate And The Proton Cyclotron Waves Activity

Autor: Andrés, Nahuel, Romanelli, Norberto, Hadid, Lina Z., Sahraoui, Fouad, DiBraccio, Gina, Halekas, Jasper

The first estimation of the incompressible energy cascade rate at magnetohydrodynamic (MHD) scales is obtained in the plasma upstream of the Martian bow shock, using MAVEN observations and an exact relation derived for MHD turbulence. The energy casc

Externí odkaz: http://arxiv.org/abs/2007.09476

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Global Ten-Moment Multifluid Simulations of the Solar Wind Interaction with Mercury: From the Planetary Conducting Core to the Dynamic Magnetosphere

Autor: Dong, Chuanfei, Wang, Liang, Hakim, Ammar, Bhattacharjee, Amitava, Slavin, James A., DiBraccio, Gina A., Germaschewski, Kai

Publikováno v: Geophysical Research Letters, 46, 11584-11596, 2019

For the first time, we explore the tightly coupled interior-magnetosphere system of Mercury by employing a three-dimensional ten-moment multifluid model. This novel fluid model incorporates the non-ideal effects including the Hall effect, inertia, an

Externí odkaz: http://arxiv.org/abs/1904.02695

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