Search Results - "Omidi, N."

Ion Acceleration by Foreshock Bubbles by Omidi, N., Lee, S. H., Sibeck, D. G.

“…Foreshock bubbles (FBs) form as a result of the interaction between solar wind discontinuities and backstreaming ion beams in the foreshock. They are carried…”
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Spontaneous hot flow anomalies at quasi-parallel shocks: 2. Hybrid simulations by Omidi, N., Zhang, H., Sibeck, D., Turner, D.

“…Motivated by recent THEMIS observations, this paper uses 2.5‐D electromagnetic hybrid simulations to investigate the formation of Spontaneous Hot Flow…”
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Impacts of Spontaneous Hot Flow Anomalies on the Magnetosheath and Magnetopause by Omidi, N., Berchem, J., Sibeck, D., Zhang, H.

“…Spacecraft observations and global hybrid (kinetic ions and fluid electrons) simulations have demonstrated that ion dissipation processes at the quasi-parallel…”
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Foreshock Bubbles at Venus: Hybrid Simulations and VEX Observations by Omidi, N., Collinson, G., Sibeck, D.

“…In the absence of a global magnetic field at Venus, its ionosphere is the obstacle to the flow of the solar wind resulting in the formation of a smaller bow…”
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First observations of foreshock bubbles upstream of Earth's bow shock: Characteristics and comparisons to HFAs by Turner, D. L., Omidi, N., Sibeck, D. G., Angelopoulos, V.

“…Using multipoint in situ observations upstream of Earth's bow shock from the THEMIS mission, we present the first observations of foreshock bubbles (FBs) and…”
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High Mach Number Quasi‐Perpendicular Shocks: Spatial Versus Temporal Structure by Omidi, N., Desai, M., Russell, C. T., Howes, G. G.

“…Planetary bow shocks are a natural laboratory for investigating the physics of collisionless shocks. Given that spacecraft observations provide us with…”
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Orientation of IMF Discontinuity Normals Across the Solar Cycles by Lee, S. H., Sibeck, D. G., Weimer, D. R., Omidi, N.

“…Transient events like hot flow anomalies and foreshock bubbles are common in the Earth's foreshock. These foreshock transients may play an important role in…”
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Foreshock Cavities: Direct Transmission Through the Bow Shock by Sibeck, D. G., Lee, S.‐H., Omidi, N., Angelopoulos, V.

“…Global hybrid code simulations predict enhanced densities and magnetic field strengths not only in foreshock compressional boundaries on the flanks of the…”
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Formation and Topology of Foreshock Bubbles by Omidi, Nick, Lee, S. H., Sibeck, D. G., Turner, Drew L., Liu, T. Z., Angelopoulos, Vassilis

“…We use global and local hybrid (kinetic ions and fluid electrons) simulations to investigate the conditions under which foreshock bubbles (FBs) form and how…”
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Magnetosheath filamentary structures formed by ion acceleration at the quasi-parallel bow shock by Omidi, N., Sibeck, D., Gutynska, O., Trattner, K. J.

“…Results from 2.5‐D electromagnetic hybrid simulations show the formation of field‐aligned, filamentary plasma structures in the magnetosheath. They begin at…”
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Interaction of Interplanetary Shocks With the Moon: Hybrid Simulations and ARTEMIS Observations by Omidi, N., Zhou, X.‐Y., Russell, C. T., Angelopoulos, V.

“…When in the solar wind, the Moon is exposed to its embedded discontinuities such as interplanetary (IP) shocks. In this study we utilize 3‐D electromagnetic…”
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Formation of hot flow anomalies and solitary shocks by Omidi, N., Sibeck, D. G.

“…Interaction of a tangential discontinuity (TD) with the bow shock is investigated by using electromagnetic, global hybrid simulations in which ions are treated…”
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Structure and Properties of the Foreshock at Venus by Omidi, N., Collinson, G., Sibeck, D.

“…The interaction of the solar wind with Venus is dominated by the planet's ionosphere that acts as an obstacle to the flow resulting in an induced magnetosphere…”
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Spontaneous hot flow anomalies at quasi-parallel shocks: 1. Observations by Zhang, H., Sibeck, D. G., Zong, Q.-G., Omidi, N., Turner, D., Clausen, L. B. N.

“…We present Time History of Events and Macroscale Interactions during Substorms (THEMIS) observations of a “Spontaneous Hot Flow Anomaly” (SHFA) upstream from…”
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Magnetosheath plasma structures and their relation to foreshock processes by Gutynska, O., Sibeck, D. G., Omidi, N.

“…We present simultaneous Time History of Events and Macroscale Interactions during Substorms observations of plasma parameters upstream in the solar wind and…”
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Microscopic, Multipoint Characterization of Foreshock Bubbles With Magnetospheric Multiscale (MMS) by Turner, D. L., Liu, T. Z., Wilson, L. B., Cohen, I. J., Gershman, D. G., Fennell, J. F., Blake, J. B., Mauk, B. H., Omidi, N., Burch, J. L.

“…This work presents the first detailed analysis of foreshock bubbles (FBs) using high‐resolution Magnetospheric Multiscale (MMS) data. Between October 2017 and…”
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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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Magnetic Holes Upstream of the Martian Bow Shock: MAVEN Observations by Madanian, H., Halekas, J. S., Mazelle, C. X., Omidi, N., Espley, J. R., Mitchell, D. L., McFadden, J. P.

“…Magnetic holes (MHs) are pressure‐balanced structures characterized by distinct decreases in the interplanetary magnetic field strength in otherwise…”
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Foreshock bubbles and their global magnetospheric impacts by Omidi, N., Eastwood, J. P., Sibeck, D. G.

“…We employ 2.5‐D electromagnetic, hybrid simulations that treat ions kinetically via particle‐in‐cell methods and electrons as a massless fluid to study the…”
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Selective Laser Melting of Stainless Steels: A review of Process, Microstructure and Properties by Mansoura, A., Omidi, N., Barka, N., Karganroudi, Sasan Sattarpanah, Dehghan, S.

“…Metal additive manufacturing is revolutionizing how we produce and use materials. Selective Laser Melting (SLM) is one of the most popular additive…”
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