Search Results - "Uzdensky, D. A."

Magnetic Reconnection Onset via Disruption of a Forming Current Sheet by the Tearing Instability by Uzdensky, D A, Loureiro, N F

“…The recent realization that Sweet-Parker current sheets are violently unstable to the secondary tearing (plasmoid) instability implies that such current sheets…”
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SIMULATIONS OF PARTICLE ACCELERATION BEYOND THE CLASSICAL SYNCHROTRON BURNOFF LIMIT IN MAGNETIC RECONNECTION: AN EXPLANATION OF THE CRAB FLARES by Cerutti, B, Werner, G R, Uzdensky, D A, Begelman, M C

“…It is generally accepted that astrophysical sources cannot emit synchrotron radiation above 160 MeV in their rest frame. This limit is given by the balance…”
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Fast magnetic reconnection in the plasmoid-dominated regime by Uzdensky, D A, Loureiro, N F, Schekochihin, A A

“…A conceptual model of resistive magnetic reconnection via a stochastic plasmoid chain is proposed. The global reconnection rate is shown to be independent of…”
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Formation of plasmoid chains in magnetic reconnection by Samtaney, R, Loureiro, N F, Uzdensky, D A, Schekochihin, A A, Cowley, S C

“…A detailed numerical study of magnetic reconnection in resistive MHD for very large, previously inaccessible, Lundquist numbers (10(4) <or= S <or= 10(8)) is…”
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Turbulent magnetic reconnection in two dimensions by Loureiro, N. F., Uzdensky, D. A., Schekochihin, A. A., Cowley, S. C., Yousef, T. A.

“…Two-dimensional numerical simulations of the effect of background turbulence on two-dimensional resistive magnetic reconnection are presented. For sufficiently…”
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Plasmoid Formation and Strong Radiative Cooling in a Driven Magnetic Reconnection Experiment by Datta, R, Chandler, K, Myers, C E, Chittenden, J P, Crilly, A J, Aragon, C, Ampleford, D J, Banasek, J T, Edens, A, Fox, W R, Hansen, S B, Harding, E C, Jennings, C A, Ji, H, Kuranz, C C, Lebedev, S V, Looker, Q, Patel, S G, Porwitzky, A, Shipley, G A, Uzdensky, D A, Yager-Elorriaga, D A, Hare, J D

“…We present the first experimental study of plasmoid formation in a magnetic reconnection layer undergoing rapid radiative cooling, a regime relevant to extreme…”
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GRB and blazar jets shining through their stripes by Giannios, D, Uzdensky, D A

“…Black hole-driven relativistic astrophysical jets, such as blazars and gamma-ray bursts (GRBs), are powerful sources of electromagnetic radiation. Their…”
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Relativistic turbulence with strong synchrotron and synchrotron self-Compton cooling by Uzdensky, D A

“…Abstract Many relativistic plasma environments in high-energy astrophysics, including pulsar wind nebulae (PWN), hot accretion flows on to black holes,…”
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Non-thermal particle acceleration in collisionless relativistic electron–proton reconnection by Werner, G. R., Uzdensky, D. A., Begelman, M. C., Cerutti, B., Nalewajko, K.

“…Abstract Magnetic reconnection in relativistic collisionless plasmas can accelerate particles and power high-energy emission in various astrophysical systems…”
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The Fast Collisionless Reconnection Condition and the Self-Organization of Solar Coronal Heating by Uzdensky, Dmitri A

“…I propose that solar coronal heating is a self-regulating process that keeps the coronal plasma roughly marginally collisionless. The proposed self-regulating…”
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THREE-DIMENSIONAL RELATIVISTIC PAIR PLASMA RECONNECTION WITH RADIATIVE FEEDBACK IN THE CRAB NEBULA by Cerutti, B, Werner, G R, Uzdensky, D A, Begelman, M C

“…The discovery of rapid synchrotron gamma-ray flares above 100 MeV from the Crab Nebula has attracted new interest in alternative particle acceleration…”
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Kinetic beaming in radiative relativistic magnetic reconnection: a mechanism for rapid gamma-ray flares in jets by Mehlhaff, J M, Werner, G R, Uzdensky, D A, Begelman, M C

“…ABSTRACT Rapid gamma-ray flares pose an astrophysical puzzle, requiring mechanisms both to accelerate energetic particles and to produce fast observed…”
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Pair-regulated Klein–Nishina relativistic magnetic reconnection with applications to blazars and accreting black holes by Mehlhaff, J M, Werner, G R, Uzdensky, D A, Begelman, M C

“…ABSTRACT Relativistic magnetic reconnection is a powerful agent through which magnetic energy can be tapped in astrophysics, energizing particles that then…”
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Stellar Explosions by Magnetic Towers by Uzdensky, Dmitri A, MacFadyen, Andrew I

“…We propose a magnetic mechanism for the collimated explosion of massive stars relevant for long-duration gamma-ray bursts (GRBs), X-ray flashes (XRFs), and…”
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Magnetic flux captured by an accretion disk by SPRUIT, H. C, UZDENSKY, Dmitri A

“…We suggest a possible mechanism of efficient transport of the large-scale external magnetic flux inward through a turbulent accretion disk. The outward drift…”
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Plasmoid and Kelvin-Helmholtz instabilities in Sweet-Parker current sheets by Loureiro, N F, Schekochihin, A A, Uzdensky, D A

“…A two-dimensional (2D) linear theory of the instability of Sweet-Parker (SP) current sheets is developed in the framework of reduced magnetohydrodynamics. A…”
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Plasmoid and Kelvin-Helmholtz instabilities in Sweet-Parker current sheets by Loureiro, N. F., Schekochihin, A. A., Uzdensky, D. A.

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Magnetic Interaction Between Stars And Accretion Disks by Uzdensky, Dmitri A

“…Issue Title: Magnetic Fields and Star Foramtion: Theory Versus Observations (Guest Editor: A.I. Gómez de Castro, M. Heyer, E. Vázquez-Semadeni, R. Rrebolo, M…”
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Pair-Regulated Klein-Nishina Relativistic Magnetic Reconnection with Applications to Blazars and Accreting Black Holes by Mehlhaff, J. M, Werner, G. R, Uzdensky, D. A, Begelman, M. C

“…Relativistic magnetic reconnection is a powerful agent through which magnetic energy can be tapped in astrophysics, energizing particles that then produce…”
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Kinetic Beaming in Radiative Relativistic Magnetic Reconnection: A Mechanism for Rapid Gamma-Ray Flares in Jets by Mehlhaff, J. M, Werner, G. R, Uzdensky, D. A, Begelman, M. C

“…Rapid gamma-ray flares pose an astrophysical puzzle, requiring mechanisms both to accelerate energetic particles and to produce fast observed variability…”
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