P. Hardee
University of Alabama
12 Papers
357 Citations
P. Hardee is an academic researcher from University of Alabama. The author has contributed to research in topics: Jet (fluid) & Weibel instability. The author has an hindex of 5, co-authored 12 publications.
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Papers
Kinematics of the jet in M 87 on scales of 100–1000 Schwarzschild radii
TL;DR: In this article, the wavelet-based image segmentation and evaluation (WISE) method was applied to 11 images obtained from multi-epoch Very Long Baseline Array (VLBA) observations made in January-August 2007 at 43 GHz (λ = 7 mm).
Kinematics of the jet in M87 on scales of 100 -- 1000 Schwarzschild radii
TL;DR: In this paper, the two-dimensional structure and kinematics of the jet in M\,87 (NGC\,4486) have been studied by applying the Wavelet-based Image Segmentation and Evaluation (WISE) method to 11 images obtained from multi-epoch Very Long Baseline Array (VLBA) observations made in January-August 2007 at 43 GHz ($\lambda = 7$ mm).
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The Structure and Dynamics of the Sub-parsec Scale Jet in M87 Based on 50 VLBA Observations Over 17 Years at 43 GHz
TL;DR: In this paper, high-dynamic-range images from the Very Long Baseline Array at 43 GHz with a resolution of about 30 by 60 Rs were used to study the jet formation and the counter-jet.
157
Evolution of Global Relativistic Jets: Collimations and Expansion with kKHI and the Weibel Instability
Ken-Ichi Nishikawa,J. T. Frederiksen,Åke Nordlund,Yosuke Mizuno,P. Hardee,Jacek Niemiec,José L. Gómez,Asaf Pe'er,Ioana Dutan,A. Meli,Helene Sol,Martin Pohl,D. H. Hartman +12 more
TL;DR: In this article, the initial evolution of both electron-proton and electron-positron relativistic jets, focusing on their lateral interaction with the ambient plasma, was studied. And the results provided a direct evidence for both jet collimation and particle acceleration in the created bow shock.
New Relativistic Particle-In-Cell Simulation Studies of Prompt and Early Afterglows from GRBs
Ken-Ichi Nishikawa,P. Hardee,Yosuke Mizuno,Bing Zhang,M. Medvedev,D. H. Hartmann,J. F. Fishman,Robert D. Preece +7 more
- 13 Jul 2008
TL;DR: In this article, the Weibel instability was shown to be responsible for generating and amplifying highly nonuniform, small-scale magnetic fields that contribute to the electron's transverse deflection behind the jet head.
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