THEMIS observations of an earthward‐propagating dipolarization front

By A. Runov, V. Angelopoulos, M. Sitnov, V. Sergeev, John W. Bonnell, J. Mcfadden, D. Larson, Karl-Heinz Glassmeier, Uli Auster. 2009

549 citations recorded by the source corpus.

View Paper: https://www.semanticscholar.org/paper/2f7df51c4486f824fb57019b748c0d9d70e90bea

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

Citations in the corpus

Magnetospheric Multiscale Science Mission Profile and Operations (2016, background): “However, the spacecraft spend a significant amount of time in the high (geomagnetic) latitude lobe regions and may investigate dipolarization fronts that result from reconnection in the magnetotail associated with geomagnetic substorms (e.g., Nakamura et al. 2002, 2012; Runov et al. 2009).”
Statistical characteristics of particle injections throughout the equatorial magnetotail (2014, result): “The examples provided in Figures 1 and 2 are also consistent with previous detailed and extensive case studies that found similar correlations between particle energization, fast flows, dipolarization fronts, and dawn-dusk electric fields [Runov et al., 2009, 2011; Zhou et al., 2011].”
Kinetic structure of the sharp injection/dipolarization front in the flow‐braking region (2009, background): “This result agrees with previous results obtained tailward of the flow-braking region [e.g., Nakamura et al., 2002; Runov et al., 2009] and implies a thin interface (tangential discontinuity) separating the ambient and injected plasmas, which follows the field line and therefore stays vertical in…”
Bursty bulk flows and dipolarization in MHD simulations of magnetotail reconnection (2011, background): “Figure 4 demonstrates the earthward propagation of a brief dipolarization signal or dipolarization front [ Runov et al., 2009 ], leading to a more permanent dipolarization first at the innermost location, where the flow is stopped, and subsequently at more and more tailward locations.”
Particle Acceleration in the Magnetotail and Aurora (2012, background): “This underlying mechanism is similar to that invoked for dipolarization events that do not necessarily lead to a full substorm (Runov et al. 2009) but may be associated with energetic particle flux enhancements, nevertheless (Sergeev et al. 2009).”
Dipolarization fronts as a consequence of transient reconnection: In situ evidence (2013, methodology): “We identify these two jumps as DFs as they satisfy the following criteria [see Runov et al., 2009; Schmid et al., 2011; Fu et al., 2012b]: (1) BzGSM was the dominant component of magnetic field; (2) BzGSM increased/decreased more than 4 nT during several seconds, and simultaneously, the inclination…”
Observations and simulations of non-local acceleration of electrons in magnetotail magnetic reconnection events (2011, background): “Recent observations in Earth’s magnetotail have shown rapid increases in electron fluxes, with energies up to hundreds of kiloelectronvolts, that are associated with earthward-moving dipolarization front”
Recent advances in understanding substorm dynamics (2012, background): “…magnetotail observations by radially separated THEMIS spacecraft have shown that flow bursts are specific individual plasma/flow structures [e.g., Runov et al., 2009] lasting several minutes and propagating predominantly earthward along the tail (as shown in Figure 1), rather than the result of…”
Accelerated ions ahead of earthward propagating dipolarization fronts (2010, background): “The dipolarization fronts have been also observed to propagate earthward coherently near the leading edge of the fast flows over a distance of ∼10 RE [ Runov et al., 2009 ].”
A statistical and event study of magnetotail dipolarization fronts (2011, methodology): “Using the passagetime of the front over the spacecraft it was estimated that the thickness of the front was∼400–500 km, i.e. at the size of the ion inertial length, with the larger size found closer to the Earth (Runov et al., 2009).”
Particle acceleration in dipolarization events (2013, methodology): “Dipolarization events may involve a brief earthward moving dipolarization pulse or “dipolarization front” [e.g., Nakamura et al., 2002; Runov et al., 2009; Sergeev et al., 2009] or, typically closer to Earth, an increase of Bz toward a more persistent higher level [Nakamura et al., 2009].”
On the current sheets surrounding dipolarizing flux bundles in the magnetotail: The case for wedgelets (2013, background): “Previously reported DF-related signatures [Runov et al., 2009, 2011a] are evidently showing up in our database: Figures 3a and 3i show the asymmetric Bz bipolar signature; Figures 3e and 3m show the earthward flow burst of 1min rise-and-fall time typically accompanying DFs [Angelopoulos et al.,…”
Electric structure of dipolarization front at sub‐proton scale (2012, background): “They are characterized by the sharp increase of Bz, decrease of density and increase of plasma flow velocity [e.g., Runov et al., 2009].”
Average thermodynamic and spectral properties of plasma in and around dipolarizing flux bundles (2015, background): “Thus, even if we are able to track the same DFB using a multiprobe array [e.g., Runov et al., 2009], we may not probe the same plasma content as the DFB progresses earthward.”
Radiation Belt Storm Probes Ion Composition Experiment (RBSPICE) (2013, background): “Such abrupt magnetic field changes, which make the stretched tail field more dipolar-like, are often referred to as dipolarization fronts (Nakamura et al. 2002; Runov et al. 2009).”
Energetic electron injections deep into the inner magnetosphere associated with substorm activity (2015, background): “More recently, another model has emerged in which localized reconnection in the plasma sheet results in the formation of dipolarization fronts [Runov et al., 2009] and “bubbles,” or dipolarizing flux bundles (DFBs) [Liu et al., 2014], of low-entropy plasma (with entropy quantified as plasma…”